← 返回首页
HTMLInputElement: willValidate プロパティ - Web API | MDN
HTML

HTML: Markup language

HTML reference HTML guides Markup languages
CSS

CSS: Styling language

CSS reference CSS guides Layout cookbook
JavaScriptJS

JavaScript: Scripting language

JS reference JS guides
Web APIs

Web APIs: Programming interfaces

Web API reference Web API guides
All

All web technology

Technologies Topics
Learn

Learn web development

Frontend developer course Learn HTML Learn CSS Learn JavaScript
Tools

Discover our tools

About

Get to know MDN better

Blog
Toggle sidebar
  1. 開発者向けのウェブ技術
  2. Web API
  3. HTMLInputElement
  4. willValidate
Theme
  • OS default
  • Light
  • Dark
日本語
Remember language Learn more

このページはコミュニティーの尽力で英語から翻訳されました。MDN Web Docs コミュニティーについてもっと知り、仲間になるにはこちらから。

View in English Always switch to English

HTMLInputElement: willValidate プロパティ

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since 2015年7月.

willValidate は HTMLInputElement インターフェイスの読み取り専用のプロパティで、この <input> 要素が制約検証の対象であるかどうかを示します。制約の検証を禁止する条件のいずれかに該当する場合、false となります。条件には次のようなものがあります。

  • type が hidden、reset、button のいずれかである
  • 祖先に <datalist> がある
  • disabled プロパティが true である

In this article

値

論理値です。

仕様書

Specification
HTML
# dom-cva-willvalidate-dev

ブラウザーの互換性

Enable JavaScript to view this browser compatibility table.

関連情報

Help improve MDN

Was this page helpful to you?
Yes No
Learn how to contribute

This page was last modified on 2025年4月12日 by MDN contributors.

View this page on GitHub • Report a problem with this content
  1. HTML DOM API
  2. HTMLInputElement
  3. インスタンスプロパティ
    1. accept
    2. alpha
    3. alt
    4. autocomplete
    5. capture
    6. checked
    7. colorSpace
    8. defaultChecked
    9. defaultValue
    10. dirName
    11. disabled
    12. files
    13. form
    14. formAction
    15. formEnctype
    16. formMethod
    17. formNoValidate
    18. formTarget
    19. height
    20. indeterminate
    21. labels
    22. list
    23. max
    24. maxLength
    25. min
    26. minLength
    27. multiple
    28. name
    29. pattern
    30. placeholder
    31. popoverTargetAction
    32. popoverTargetElement
    33. readOnly
    34. required
    35. selectionDirection
    36. selectionEnd
    37. selectionStart
    38. size
    39. src
    40. step
    41. type
    42. validationMessage
    43. validity
    44. value
    45. valueAsDate
    46. valueAsNumber
    47. webkitdirectory
    48. webkitEntries
    49. width
    50. willValidate
  4. インスタンスメソッド
    1. checkValidity()
    2. reportValidity()
    3. select()
    4. setCustomValidity()
    5. setRangeText()
    6. setSelectionRange()
    7. showPicker()
    8. stepDown()
    9. stepUp()
  5. イベント
    1. cancel
    2. invalid
    3. search
    4. select
    5. selectionchange
  6. 継承
    1. HTMLElement
    2. Element
    3. Node
    4. EventTarget
  7. HTML DOM に関連するページ
    1. BeforeUnloadEvent
    2. DOMStringMap
    3. ErrorEvent
    4. HTMLAnchorElement
    5. HTMLAreaElement
    6. HTMLAudioElement
    7. HTMLBRElement
    8. HTMLBaseElement
    9. HTMLBodyElement
    10. HTMLButtonElement
    11. HTMLCanvasElement
    12. HTMLDListElement
    13. HTMLDataElement
    14. HTMLDataListElement
    15. HTMLDialogElement
    16. HTMLDivElement
    17. HTMLDocument
    18. HTMLElement
    19. HTMLEmbedElement
    20. HTMLFieldSetElement
    21. HTMLFormControlsCollection
    22. HTMLFormElement
    23. HTMLFrameSetElement
    24. HTMLGeolocationElement
    25. HTMLHRElement
    26. HTMLHeadElement
    27. HTMLHeadingElement
    28. HTMLHtmlElement
    29. HTMLIFrameElement
    30. HTMLImageElement
    31. HTMLLIElement
    32. HTMLLabelElement
    33. HTMLLegendElement
    34. HTMLLinkElement
    35. HTMLMapElement
    36. HTMLMediaElement
    37. HTMLMenuElement
    38. HTMLMetaElement
    39. HTMLMeterElement
    40. HTMLModElement
    41. HTMLOListElement
    42. HTMLObjectElement
    43. HTMLOptGroupElement
    44. HTMLOptionElement
    45. HTMLOptionsCollection
    46. HTMLOutputElement
    47. HTMLParagraphElement
    48. HTMLPictureElement
    49. HTMLPreElement
    50. HTMLProgressElement
    51. HTMLQuoteElement
    52. HTMLScriptElement
    53. HTMLSelectElement
    54. HTMLSourceElement
    55. HTMLSpanElement
    56. HTMLStyleElement
    57. HTMLTableCaptionElement
    58. HTMLTableCellElement
    59. HTMLTableColElement
    60. HTMLTableElement
    61. HTMLTableRowElement
    62. HTMLTableSectionElement
    63. HTMLTemplateElement
    64. HTMLTextAreaElement
    65. HTMLTimeElement
    66. HTMLTitleElement
    67. HTMLTrackElement
    68. HTMLUListElement
    69. HTMLUnknownElement
    70. HTMLVideoElement
    71. HashChangeEvent
    72. History
    73. ImageData
    74. Location
    75. MessageChannel
    76. MessageEvent
    77. MessagePort
    78. Navigator
    79. PageRevealEvent
    80. PageSwapEvent
    81. PageTransitionEvent
    82. Plugin
    83. PluginArray
    84. PromiseRejectionEvent
    85. RadioNodeList
    86. TimeRanges
    87. UserActivation
    88. ValidityState
    89. Window
    90. WorkletGlobalScope
  8. ガイド
    1. JavaScript で queueMicrotask() によるマイクロタスクの使用
    2. In depth: Microtasks and the JavaScript runtime environment

Your blueprint for a better internet.

MDN Contribute Developers

Visit Mozilla Corporation’s not-for-profit parent, the Mozilla Foundation.
Portions of this content are ©1998–2026 by individual mozilla.org contributors. Content available under a Creative Commons license.