JS 参考手册

JS 参考手册(类别排序) JS 参考手册(字母排序)

JavaScript

JS Array JS Boolean JS Classes JS Date JS Error JS Global JS JSON JS Math JS Number JS 运算符 JS RegExp JS 语句 JS String

HTML DOM

DOM Attributes DOM Document DOM Element DOM Events DOM Event 对象 DOM HTMLCollection DOM Location DOM Navigator DOM Screen DOM Style
alignContent alignItems alignSelf animation animationDelay animationDirection animationDuration animationFillMode animationIterationCount animationName animationTimingFunction animationPlayState background backgroundAttachment backgroundColor backgroundImage backgroundPosition backgroundRepeat backgroundClip backgroundOrigin backgroundSize backfaceVisibility border borderBottom borderBottomColor borderBottomLeftRadius borderBottomRightRadius borderBottomStyle borderBottomWidth borderCollapse borderColor borderImage borderImageOutset borderImageRepeat borderImageSlice borderImageSource borderImageWidth borderLeft borderLeftColor borderLeftStyle borderLeftWidth borderRadius borderRight borderRightColor borderRightStyle borderRightWidth borderSpacing borderStyle borderTop borderTopColor borderTopLeftRadius borderTopRightRadius borderTopStyle borderTopWidth borderWidth bottom boxShadow boxSizing captionSide caretColor clear clip color columnCount columnFill columnGap columnRule columnRuleColor columnRuleStyle columnRuleWidth columns columnSpan columnWidth counterIncrement counterReset cursor direction display emptyCells filter flex flexBasis flexDirection flexFlow flexGrow flexShrink flexWrap cssFloat font fontFamily fontSize fontStyle fontVariant fontWeight fontSizeAdjust height isolation justifyContent left letterSpacing lineHeight listStyle listStyleImage listStylePosition listStyleType margin marginBottom marginLeft marginRight marginTop maxHeight maxWidth minHeight minWidth objectFit objectPosition opacity order orphans outline outlineColor outlineOffset outlineStyle outlineWidth overflow overflowX overflowY padding paddingBottom paddingLeft paddingRight paddingTop pageBreakAfter pageBreakBefore pageBreakInside perspective perspectiveOrigin position quotes resize right scrollBehavior tableLayout tabSize textAlign textAlignLast textDecoration textDecorationColor textDecorationLine textDecorationStyle textIndent textOverflow textShadow textTransform top transform transformOrigin transformStyle transition transitionProperty transitionDuration transitionTimingFunction transitionDelay unicodeBidi userSelect verticalAlign visibility width wordBreak wordSpacing wordWrap widows zIndex
DOM Window

Web APIs

API Console API Geolocation API History API Storage

HTML 对象

<a> <abbr> <address> <area> <article> <aside> <audio> <b> <base> <bdo> <blockquote> <body> <br> <button> <canvas> <caption> <cite> <code> <col> <colgroup> <datalist> <dd> <del> <details> <dfn> <dialog> <div> <dl> <dt> <em> <embed> <fieldset> <figcaption> <figure> <footer> <form> <head> <header> <h1> - <h6> <hr> <html> <i> <iframe> <img> <ins> <input> button <input> checkbox <input> color <input> date <input> datetime <input> datetime-local <input> email <input> file <input> hidden <input> image <input> month <input> number <input> password <input> radio <input> range <input> reset <input> search <input> submit <input> text <input> time <input> url <input> week <kbd> <label> <legend> <li> <link> <map> <mark> <menu> <menuitem> <meta> <meter> <nav> <object> <ol> <optgroup> <option> <output> <p> <param> <pre> <progress> <q> <s> <samp> <script> <section> <select> <small> <source> <span> <strong> <style> <sub> <summary> <sup> <table> <tbody> <td> <tfoot> <th> <thead> <tr> <textarea> <time> <title> <track> <u> <ul> <var> <video>

其他参考手册

CSSStyleDeclaration JS 类型转换


oninvalid 事件

❮ DOM 事件 ❮ Event 对象

实例

如果输入字段无效,则提示一些文本:

<input type="text" oninvalid="alert('You must fill out the form!');" required>
亲自试一试 »

页面下方有更多实例。


定义和用法

当可提交的 <input> 元素无效时,会发生 oninvalid 事件。

例如,如果设置了 required 属性,并且字段为空,则输入字段无效(required 属性指定输入字段必须在提交表单之前填写)。


浏览器支持

表中的数字表示支持该事件的第一个浏览器版本。

事件
oninvalid Yes 10.0 Yes Yes Yes


语法

在 HTML 中:

<element oninvalid="myScript">
亲自试一试 »

在 JavaScript 中:

object.oninvalid = function(){myScript};
亲自试一试 »

在 JavaScript 中,使用 addEventListener() 方法:

object.addEventListener("invalid", myScript);
亲自试一试 »

注释:Internet Explorer 8 或更早的版本不支持 addEventListener() 方法


技术细节

是否支持冒泡: No
是否支持取消: Yes
事件类型: Event
支持的 HTML 标签: <input>
DOM 版本: Level 3 Events

更多实例

实例

如果输入字段包含少于 6 个字符,则提示一些文本:

Name: <input type="text" id="myInput" name="fname" pattern=".{6,}" required>

<script>
document.getElementById("myInput").addEventListener("invalid", myFunction);

function myFunction() {
  alert("Must contain 6 or more characters");
}
</script>
亲自试一试 »

实例

如果输入字段包含小于 2 或大于 5 的数字,则提示一些文本:

Number: <input type="number" id="myInput" name="quantity" min="2" max="5" required>

<script>
document.getElementById("myInput").addEventListener("invalid", myFunction);

function myFunction() {
  alert("You must pick a number between 2 and 5. You chose: " + this.value);
}
</script>
亲自试一试 »

相关页面

JavaScript 教程: JavaScript Forms


❮ DOM 事件 ❮ Event 对象