--- title: "ワンタイムコードフィールド" description: "ユーザーへ送った短いコードを、完成した 1 つのフィールドとして受け取ります。ラベルの下にマス目があり、補足の 1 行と、コードが違うときの言葉が付きます。支援技術に対して 1 つに結び付けられ、フォームには 1 つのコントロールとして加わります。" url: "https://tanrei.chnotchy.com/ja/components/one-time-code-field/" last_updated: 2026-10-23T21:17:12.000Z --- # ワンタイムコードフィールド > ユーザーへ送った短いコードを、完成した 1 つのフィールドとして受け取ります。ラベルの下にマス目があり、補足の 1 行と、コードが違うときの言葉が付きます。支援技術に対して 1 つに結び付けられ、フォームには 1 つのコントロールとして加わります。 ## 概要 ワンタイムコードフィールドは、プロダクトが送った短いコードを入力してもらう場面で使います。サインイン、メールアドレスや電話番号の確認、支払いの承認などです。ラベル、マス目、コードの送り先を伝える 1 行、コードが違うときの言葉という、いつもの組み合わせが、そのまま使える形でそろっています。 **構成要素**は、[フィールド](https://tanrei.chnotchy.com/ja/components/field/)と[ワンタイムコード入力欄](https://tanrei.chnotchy.com/ja/components/one-time-code-input/)です。フィールドは枠で、ラベル、必須または任意の印、補足、エラーを受け持ちます。ワンタイムコード入力欄はコントロールで、マス目と、その中でユーザーが行うすべてを受け持ちます。ワンタイムコードフィールドが自分で描くものはなく、トークンもありません。プロパティはどれも 2 つのどちらかのもので、そのまま渡されます。 幅は置かれた場所に合わせて広がり、マス目は先頭の端から並びます。 Web では `` です。ほかのプラットフォームはまだ実装していません。 ### 使い方 `value` は、そこまでに入力されたコードです。グループをどう描いていても、区切りは含みません。4 つのイベントはワンタイムコード入力欄のもので、どれが届いた時点でも、フィールドの `value` はすでに新しい値になっています。 **Web** ```html
``` **React** ```tsx import { OneTimeCodeField } from '@tanrei/react'; setCode(event.currentTarget.value)} onComplete={(event) => verify(event.detail.value)} /> ``` ### 1 つ下の階層 同じフィールドを 2 つの構成要素から自分で書いても、見た目は同じで、支援技術にとっても同じテキストボックスになります。 ```html ``` ワンタイムコードフィールドにない並べ方が必要なときに、1 つ下の階層で書きます。 | 必要なもの | 使うもの | | --- | --- | | ラベル、マス目、補足、エラー | ワンタイムコードフィールド | | 枠の中、マス目の隣に置く自分の要素（コードを送り直すコントロール、残り時間の表示など） | [フィールド](https://tanrei.chnotchy.com/ja/components/field/)に、[ワンタイムコード入力欄](https://tanrei.chnotchy.com/ja/components/one-time-code-input/)と自分の要素を入れる | | マス目だけ。ラベルは別の場所（ダイアログの見出し、ステップのタイトルなど）に描かれている | [ワンタイムコード入力欄](https://tanrei.chnotchy.com/ja/components/one-time-code-input/)を単独で使い、入力欄の `label` で名前を付ける | | マス目のない 1 つの入力欄。コードの長さがわからない | `autocomplete="one-time-code"` を付けた[テキストフィールド](https://tanrei.chnotchy.com/ja/components/text-field/) | 1 つ下の階層で変わるのは、何をどこに指定するかです。`name` と `value` はワンタイムコード入力欄に指定し、フォームに加わるコントロールもイベントが届く先も入力欄になります。`label`、`error`、`disabled` はフィールドに指定したままにします。フィールドがコントロールに伝えるので、入力欄の側には指定しません。 ## 仕様 ### それぞれの構成要素が受け持つもの | 観点 | フィールドから | ワンタイムコード入力欄から | | --- | --- | --- | | プロパティ | `label`、`labelHidden`、`supportingText`、`errorText`、`error`、`disabled`、`required`、`optional`、`requiredMark`、`requiredText`、`optionalText` | `value`、`length`、`type`、`groupSize`、`mask`、`readOnly` | | イベント | — | `input`、`change`、`complete`、`action` | | スロット | `label-icon` | — | | トークン | `comp.field.*` | `comp.one-time-code-input.*` | ワンタイムコード入力欄は、自分の `label`、`error`、`disabled` を持っています。これらはワンタイムコードフィールドのプロパティではありません。フィールドの `label` がコントロールに名前を付け、`error` がマス目をエラーの状態にし、`disabled` がマス目を無効にします。そのため、どれもワンタイムコードフィールドに 1 回指定すればよく、ラベルもコントロールと一緒に変わります。 マス目の動き（入力、貼り付け、矢印キー、グループ）は[ワンタイムコード入力欄のページ](https://tanrei.chnotchy.com/ja/components/one-time-code-input/)に、枠の動き（必須の印、補足、エラーとその読み上げ）は[フィールドのページ](https://tanrei.chnotchy.com/ja/components/field/)にあります。 ### 1 つのフィールドだけを変える ワンタイムコードフィールドに自分のトークンはありません。枠はフィールドのトークンを、マス目はワンタイムコード入力欄のトークンを、どこで設定されていても読みます。1 つだけ変えるには、構成要素のトークンをその要素に設定します。 ```html ``` - Category: Text inputs - Level: composed - Listing: default - Built from: Field, One-time-code input - Page: https://tanrei.chnotchy.com/components/one-time-code-field/ - Spec: https://github.com/chnotchy/tanrei/blob/main/specs/one-time-code-field.spec.json ### Availability | Design system | Has it | Notes | | --- | --- | --- | | Tanrei (`tanrei`) | Yes | — | | Cupertino (Apple HIG-inspired) (`cupertino`) | Yes | — | | M3 Expressive-like (Material 3 Expressive-inspired) (`m3-expressive-like`) | Yes | — | | M3-like (Material 3-inspired) (`m3-like`) | Yes | — | ### Platforms - Web: the element ``, registered by importing `@tanrei/web` (or only its own module, `@tanrei/web/components/one-time-code-field`). - React: `OneTimeCodeField` from `@tanrei/react`. | Platform | Name | Status | | --- | --- | --- | | Web | `tanrei-one-time-code-field` | lagging | | SwiftUI | `TanreiOneTimeCodeField` | planned | | Jetpack Compose | `TanreiOneTimeCodeField` | planned | | Flutter | `TanreiOneTimeCodeField` | planned | | React Native | `OneTimeCodeField` | planned | Names a platform gives in its own idiom: | Spec | Web | SwiftUI | Jetpack Compose | Flutter | React Native | | --- | --- | --- | --- | --- | --- | | `label` (prop) | `label` | `label` | `label` | `labelText` | `label` | | `labelHidden` (prop) | `labelHidden` | `labelsHidden` | `labelHidden` | `labelHidden` | `labelHidden` | | `supportingText` (prop) | `supportingText` | `supportingText` | `supportingText` | `helperText` | `supportingText` | | `error` (prop) | `error` | `error` | `isError` | `isError` | `error` | | `disabled` (prop) | `disabled` | `disabled` | `enabled` | `enabled` | `disabled` | | `required` (prop) | `required` | `isRequired` | `required` | `required` | `required` | | `optional` (prop) | `optional` | `isOptional` | `optional` | `optional` | `optional` | | `value` (prop) | `value` | `code` | `value` | `controller` | `value` | | `mask` (prop) | `mask` | `isMasked` | `masked` | `obscureText` | `secureTextEntry` | | `input` (event) | `input` | `code` | `onValueChange` | `onChanged` | `onChangeText` | | `change` (event) | `change` | `onCommit` | `onCommit` | `onCommit` | `onEndEditing` | | `complete` (event) | `complete` | `onComplete` | `onComplete` | `onCompleted` | `onComplete` | | `action` (event) | `action` | `onSubmit` | `keyboardActions` | `onSubmitted` | `onSubmitEditing` | Statuses: `planned` — In the inventory. Nothing shippable exists yet. `lagging` — An implementation of an earlier spec exists; it has not caught up with the current one. `alpha` — Implemented with tests. The API may still change. `beta` — Feature complete and at parity. Only fixes are expected. `stable` — Covered by semantic versioning. `deprecated` — Still shipped; scheduled for removal. ### Anatomy - `field`: The frame: a Field, whole — its label row with the label glyph and the requirement mark, and its supporting row, where the error text stands in the help's place or below it (FLD-7). Drawn by the Field from the Field's tokens (FLD-1 to FLD-9). - `one-time-code-input`: The frame's one control: a One-time-code input, whole — its cells, its characters, its caret and its group marks. Drawn by the One-time-code input from its own tokens (OTC-1 to OTC-3, OTC-15). ### Props | Prop | Type | Default | Web attribute | Description | | --- | --- | --- | --- | --- | | `label` | `string` | `""` | `label` | Names the control, visibly and to assistive technology. Required, unless the control names itself (a checkbox or a switch with its own label): then leave it empty and the field adds only help and an error. (From Field: Always given: the control of a one-time-code field never names itself, so the case of an empty label does not arise.) | | `labelHidden` | `boolean` | `false` | `label-hidden` | Does not draw the label, which stays the accessible name. For a control whose visible label is elsewhere (a table column, a toolbar). (From Field.) | | `supportingText` | `string` | `""` | `supporting-text` | Help shown below the control and given to assistive technology as the control's description. While the field is in error it gives way to errorText, unless the design system keeps both (comp.field.error-text.placement append). (From Field.) | | `errorText` | `string` | `""` | `error-text` | Shown while error is true, in supportingText's place — or below it, which then stays, where the design system's comp.field.error-text.placement is append: what is wrong and how to put it right, in words. (From Field.) | | `error` | `boolean` | `false` | `error` | Puts the field in the error condition: the error text is drawn, the control is exposed as invalid and, where it has an error condition of its own, drawn in it. What a value means is the product's to validate; the field never sets this itself. (From Field: The one error of the one-time-code field: the Field passes it to the control (FLD-8, OTC-17), whose own error is not a prop here.) | | `disabled` | `boolean` | `false` | `disabled` | Disables the control and draws the frame as disabled. Disable a framed control here, not on the control, so that its label follows. (From Field: The one disabled of the one-time-code field: the Field passes it to the control (FLD-14, OTC-20), whose own disabled is not a prop here.) | | `required` | `boolean` | `false` | `required` | What the form asks of the control: true exposes it as required and draws the required mark beside the label. It never validates: a missing answer is the product's to report with error. (From Field.) | | `optional` | `boolean` | `false` | `optional` | Draws the optional tag after the label and adds optionalText to the control's description, because assistive technology has no state for it. Ignored while required is true: a control is never both. (From Field.) | | `requiredMark` | `enum`: `auto`, `tag`, `asterisk`, `none` | `"auto"` | `required-mark` | How this control shows that it is required: tag is a small filled Tag with requiredText, asterisk is "*" after the label, none draws nothing and keeps the semantics. Auto takes comp.field.requirement.mark, which follows sys.behavior.requirement-mark, the system's one answer. Ignored unless required is true. (From Field.) | | `requiredText` | `string` | `""` | `required-text` | The text of the required tag, in the product's language ("Required", "必須"). The product's: Tanrei has no word for it. Empty reads the product's words; with neither, FLD-24 says what is drawn. (From Field.) | | `optionalText` | `string` | `""` | `optional-text` | The text of the optional tag, in the product's language ("Optional", "任意"); also read to assistive technology as part of the description. The product's: Tanrei has no word for it. Empty reads the product's words. (From Field.) | | `value` | `string` | `""` | `value` | The code entered so far: at most length characters, digits or, for alphanumeric, digits and upper-case letters, with no separator. One string, whatever the cells and groups drawn. (From One-time-code input.) | | `length` | `number` | `6` | `length` | How many characters the code has, and so how many cells are drawn. A whole number of 1 or more. (From One-time-code input.) | | `type` | `enum`: `numeric`, `alphanumeric` | `"numeric"` | `type` | What a cell takes: numeric is the digits 0 to 9, with a numeric keypad; alphanumeric is digits and the letters A to Z, held in upper case, with a general keyboard. (From One-time-code input.) | | `groupSize` | `number` | `0` | `group-size` | Draws the cells in groups of this many, counted from the first, with a mark between two groups (3 for a six-character code written "123 456"). 0 draws one group. It changes the drawing only: the value has no separator. (From One-time-code input.) | | `mask` | `boolean` | `false` | `mask` | Draws the platform's obscuring mark in each filled cell in place of its character, and exposes the field as protected. For a screen other people can see; a code that is used once and expires rarely needs it. (From One-time-code input.) | | `readOnly` | `boolean` | `false` | `readonly` | Keeps the field focusable and its value readable, and lets nothing change it: for the moment a complete code is being checked, when taking focus away would lose the place of a person who must then correct it. (From One-time-code input.) | ### Events | Event | Description | | --- | --- | | `input` | The person changed the value; carries the new value. Emitted for every change, not when the product sets value. (From One-time-code input.) | | `change` | The person committed a changed value (focus left the field, or the action key was pressed); carries the value. (From One-time-code input.) | | `complete` | A change by the person left the value length characters long; carries the value. Emitted after input, once for that change. The field does nothing else: checking the code is the product's. (From One-time-code input.) | | `action` | The person pressed the keyboard's action key (Enter, Return, Done). (From One-time-code input.) | ### Slots | Slot | Description | | --- | --- | | `label-icon` | A glyph before the label. (From Field.) | ### States `enabled`, `disabled`, `hovered`, `focused`, `error` ### Accessibility - Role: `textbox` - Labeling: One text box, the One-time-code input's (OTC-2); the frame has no role. Its accessible name is label, drawn or not (labelHidden), and its description is the supporting text with, in error, the error text after it, with optionalText while optional is true (FLD-10, FLD-11, OTC-22). It is exposed as invalid while error is true, required while required is true, disabled while disabled is true, read-only while readOnly is true, and as a protected text entry while mask is true. The label's drawn text, the requirement mark, the cells, the caret and the group marks are not exposed a second time (FLD-11, OTC-2). - Minimum target size: yes | Keys | Action | | --- | --- | | Tab / Shift+Tab | Moves focus to the control and on from it: the one-time-code field is one stop, its control's, and adds none (OTF-5). | | Every other key | The One-time-code input's own, as its spec's keyboard table says (OTC-6, OTC-8 to OTC-11, OTC-13). The one-time-code field handles no key. | - What the one-time-code field adds to its members is their being one thing: one tag or one call, one set of props, one value and one entry in a form (OTF-2 to OTF-4). The tie between the two — the name, the description, required, invalid, disabled — is not the one-time-code field's: it is what a Field gives any control it frames, and it runs here exactly as it runs in a product's own Field. - One level down: a Field with a One-time-code input in it, written by the product, is the same picture and the same text box, and the Field's fixtures code-supporting, code-error, code-disabled and code-required-rtl are this component's twins. A product drops to it for an arrangement the one-time-code field does not offer: something of its own inside the frame beside the cells (a resend control, a countdown), or the One-time-code input alone under a dialog's headline, named by its own label. - The members' notes hold as written and are not repeated: errors are words (the Field's); nothing happens by itself when the code is complete, and paste and the platform's autofill are never blocked (the One-time-code input's). - The hit area is the control's (OTC-25); the label widens where a press can land without widening what a press does (FLD-12). - Not pressable: a press focuses the control and is not an action (OTC-25), so BTN-8, BTN-9 and BTN-10 are not copied. - How a state looks is a value decision of the active design system; components read the state's tokens and never compute the effect themselves. ### Behaviour Requirements in EARS form, each with its stable id. - **OTF-1** THE one-time-code field SHALL be a Field whose one control is a One-time-code input, and SHALL draw nothing of its own: every row, text, mark, cell and line it shows is drawn by one of the two, from that component's own tokens, as FLD-1 to FLD-8 and OTC-1 to OTC-3, OTC-7 and OTC-15 to OTC-17 say. THE one-time-code field SHALL have no token, no size and no gap of its own: the Field places the control and gives it its width (FLD-1), and the One-time-code input lays its row out in that width (OTC-1, OTC-23). What it shows SHALL be the picture a product gets by placing that One-time-code input in that Field by hand with the same values, and what assistive technology is told SHALL be the same name, description and states (FLD-10, FLD-11, OTC-22). - **OTF-2** THE one-time-code field SHALL give each of its props, unchanged, to the member it is from and SHALL hold no state between the two: label, labelHidden, supportingText, errorText, error, disabled, required, optional, requiredMark, requiredText and optionalText are the Field's; value, length, type, groupSize, mask and readOnly are the One-time-code input's. A value a member does not know SHALL be passed on as given and answered by that member (FLD-22, OTC-19). THE one-time-code field SHALL never set the One-time-code input's own label, error or disabled: the Field's label names the control (FLD-10, OTC-22), the Field's error puts it in its error condition (FLD-8, OTC-17) and the Field's disabled disables it (FLD-14, OTC-20), so that each is said once, in the place where the label follows. - **OTF-3** THE one-time-code field SHALL hold one value, the One-time-code input's. WHEN the person changes it THE one-time-code field's value SHALL be the new one before any event is reported, and THE one-time-code field SHALL report input, change, complete and action as the One-time-code input emits them — the same events, carrying the same value, in the same order and as often (OTC-13, OTC-14) — as its own, adding none and holding none back. WHEN the product sets value THE one-time-code field SHALL show it as OTC-18 says and SHALL report no event. - **OTF-4** WHERE the platform has forms (the web) THE one-time-code field SHALL be the one control the form meets, and what OTC-29 says of a One-time-code input SHALL hold of the one-time-code field as a whole: it takes name; it submits the code alone, an empty string WHILE it holds none, and nothing WHILE disabled (OTC-20); it is restored on navigation and resets to the value it was first given; and it reports a missing value WHILE required is true and the value is empty, and nothing for a code shorter than length. Its members SHALL add no entry of their own to the form, and the action key SHALL submit the form the one-time-code field belongs to as OTC-13 says, unless action was cancelled. - **OTF-5** THE one-time-code field SHALL be one stop in the focus order, its control's (FLD-12, OTC-2). WHEN the product moves focus to the one-time-code field THE one-time-code field SHALL pass it to the control, whose active cell is then the one OTC-5 names. A press on the label row SHALL move focus to the control and a press on the supporting row SHALL do nothing (FLD-12); THE one-time-code field SHALL take focus for no other press, SHALL add no key, and SHALL draw no focus indicator of its own: the frame's focused tokens and the active cell's focused line are the members' (FLD-13, OTC-7). - **OTF-6** THE one-time-code field SHALL hold exactly one control and SHALL take no other from the product: it has no place for a child but the Field's label glyph (FLD-3, FLD-20), so that the cases of FLD-15 — no control, several controls — and of FLD-23 — a control replaced by another — never arise in it. IF the one-time-code field is placed in a Field THEN THE one-time-code field SHALL be drawn as it is and reported in debug builds as a field placed in a Field (FLD-15); WHERE it is placed in a field group THE one-time-code field SHALL follow the group's disabled as a Field does (FGR-14) and SHALL take nothing else from the group. - **OTF-7** THE one-time-code field SHALL have no words of its own: every word it shows or says is a prop of the Field's, read as FLD-24 says — the instance's, else the product's words of the same name — and the One-time-code input has none (OTC-30). THE one-time-code field SHALL read no key of the product's words itself. - **OTF-8** THE one-time-code field SHALL add nothing to how its members answer the place they are used in: the layout direction (FLD-18 to FLD-21; OTC-27 and OTC-28, by which the cells stay a left-to-right run and stand at the start edge, under the label), enlarged text (FLD-16, OTC-23, OTC-24), a person's own forced colors (FLD-17, OTC-26) and the caret's reduced motion are each member's own answer. THE one-time-code field SHALL have no direction, size, color or motion setting of its own, and SHALL never be wider than its layout gives it. - **OTF-9** WHERE the platform has ARIA attributes (the web), WHEN the product sets an aria- attribute on the host, by the attribute or by the ARIA property that reflects it, THE one-time-code field SHALL move it to the data-aria- attribute of the same name, so that the host is no second node with its name, description or state, and SHALL expose it on the element that carries its role — an id reference by the elements it names in the host's tree or a tree around it, an error message as part of the description while the one-time-code field is invalid — except those the one-time-code field owns (aria-label, aria-labelledby, aria-disabled), which it SHALL move and not expose: its name is label (OTF-1). WHEN the product removes the aria- attribute or its data-aria- twin, or sets the ARIA property that reflects it (ariaLabel, ariaDescribedByElements…) to null, THE one-time-code field SHALL take it off that element. WHEN the product sets an aria- attribute the one-time-code field owns THE one-time-code field SHALL report it in debug builds. ### Tokens As written in the token documents (DTCG): an alias in braces names the token it takes its value from, which each design system resolves. On the web each token is a CSS custom property: `--tanrei` and the name after `tanrei`, joined by hyphens (`tanrei.comp.field.…` → `--tanrei-comp-field-…`). #### `tanrei.comp.field` | Token | Type | Value | | --- | --- | --- | | `comp.field.label.typescale` | `typography` | `{tanrei.sys.typescale.label}` | | `comp.field.label.gap` | `dimension` | `{tanrei.sys.space.space100}` | | `comp.field.label-icon.size` | `dimension` | `{tanrei.sys.icon.small}` | | `comp.field.label-icon.gap` | `dimension` | `{tanrei.sys.space.space100}` | | `comp.field.requirement.mark` | `number` | `{tanrei.sys.behavior.requirement-mark}` | | `comp.field.requirement.gap` | `dimension` | `{tanrei.sys.space.space100}` | | `comp.field.requirement.asterisk-gap` | `dimension` | `{tanrei.sys.space.space25}` | | `comp.field.supporting-text.typescale` | `typography` | `{tanrei.sys.typescale.label-small}` | | `comp.field.supporting-text.gap` | `dimension` | `{tanrei.sys.space.space50}` | | `comp.field.counter.gap` | `dimension` | `{tanrei.sys.space.space200}` | | `comp.field.motion.state-duration` | `duration` | `{tanrei.sys.motion.role.state.default}` | | `comp.field.motion.state-easing` | `cubicBezier` | `{tanrei.sys.motion.easing.state}` | | `comp.field.standard.label.color` | `color` | `{tanrei.sys.color.on-surface}` | | `comp.field.standard.label-icon.color` | `color` | `{tanrei.sys.color.on-surface-variant}` | | `comp.field.standard.supporting-text.color` | `color` | `{tanrei.sys.color.on-surface-variant}` | | `comp.field.standard.counter.color` | `color` | `{tanrei.sys.color.on-surface-variant}` | | `comp.field.standard.required-asterisk.color` | `color` | `{tanrei.sys.color.primary}` | | `comp.field.standard.error.label.color` | `color` | `{tanrei.sys.color.on-surface}` | | `comp.field.standard.error.label-icon.color` | `color` | `{tanrei.sys.color.on-surface-variant}` | | `comp.field.standard.error.supporting-text.color` | `color` | `{tanrei.sys.color.on-surface-variant}` | | `comp.field.standard.error.counter.color` | `color` | `{tanrei.sys.color.on-surface-variant}` | | `comp.field.standard.error.required-asterisk.color` | `color` | `{tanrei.sys.color.primary}` | | `comp.field.standard.error.value-text.color` | `color` | `{tanrei.sys.color.on-surface-variant}` | | `comp.field.standard.value-text.color` | `color` | `{tanrei.sys.color.on-surface-variant}` | | `comp.field.standard.error-text.color` | `color` | `{tanrei.sys.color.error}` | | `comp.field.value-text.typescale` | `typography` | `{tanrei.sys.typescale.label}` | | `comp.field.value-text.gap` | `dimension` | `{tanrei.sys.space.space200}` | | `comp.field.error-text.gap` | `dimension` | `{tanrei.sys.space.space50}` | | `comp.field.error-text.placement` | `number` | `0` | Per-state tokens, valued by the design system's pattern rules (not written by hand): - `comp.field...` for the variants `standard`, the states `focused`, `disabled` and the properties `label.color`, `label-icon.color`, `supporting-text.color`, `required-asterisk.color`, `error.label.color`, `error.label-icon.color`, `error.supporting-text.color`, `error.required-asterisk.color`, `counter.color`, `error.counter.color`, `value-text.color`, `error.value-text.color`, `error-text.color`. ### Web での描き方の違い - 要素のシャドウルートにあるのは、`` を入れた `` だけです。要素をインポートすると、2 つとも定義されます。 - 要素はフォームに関連付けられます。`name` と `form` を受け取り、コードだけを送信します（無効の間は何も送信しません）。リセットすると `value` 属性の値に戻り、無効な `
` に従い、`required` が設定されていて値が空の間は、値がないことを報告します。2 つの構成要素がフォームに項目を加えることはありません。マス目で Enter を押すと、要素のフォームの既定のボタンが押されます。`action` をキャンセルすると押されません。 - `input`、`change`、`complete`、`action` は、`detail.value` を持つ、ワンタイムコード入力欄の CustomEvent です。イベントのターゲットはこの要素で、どのリスナーでも `event.target.value` がコードです。 - パーツ: `field` と `one-time-code-input` が 2 つの構成要素です。構成要素のパーツは、1 つ下の階層と同じ名前です。`label`、`label-icon`、`requirement-label`、`supporting-text` と、`input`、`cell`、`character`、`caret`、`separator` です。 - 要素そのものはフォーカスを受け取りません。`focus()` はマス目に移り、ページの `