JS 参考手册

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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


JavaScript continue 语句


实例

在本例中,我们将 for 循环与 continue 语句一起使用。

循环一段代码,但跳过 "3" 这个值:

var text = "";
var i;
for (i = 0; i < 5; i++) {
  if (i === 3) {
    continue;
  }
  text += "The number is " + i + "<br>";
}
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页面下方有更多实例。


定义和用法

如果出现指定条件,则 continue 语句会中断一次迭代(在循环中),并继续循环中的下一次迭代。

continue 和 break 语句之间的区别在于,continue 语句不是"跳出"循环,而是"跳过"循环中的一次迭代。

但是,当执行 continue 语句时,对于不同类型的循环,它的行为会有所不同:

  • 在 while 循环中,测试条件,如果为真,则再次执行循环
  • 在 for 循环中,首先计算增量表达式(例如 i++),然后测试条件以确定是否应该进行另一次迭代

continue 语句也可以与可选的标签引用一起使用

注释: continue 语句(带或不带标签引用)只能在循环内使用。


浏览器支持

Statement
continue Yes Yes Yes Yes Yes

语法

continue;

使用可选的标签引用:

continue labelname;


技术细节

JavaScript 版本: ECMAScript 1

更多实例

实例

在本例中,我们将 while 循环与 continue 语句一起使用。

循环一段代码,但跳过 "3" 这个值:

var text = "";
var i = 0;
while (i < 5) {
  i++;
  if (i === 3) {
    continue;
  }
text += "<br>The number is " + i;
}

文本的结果将是:

The number is 1
The number is 2
The number is 4
The number is 5
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实例

循环一段代码,但跳过数字 2 和 3(使用 OR 运算符):

var text = "";
var i;
for (i = 1; i < 8; i++) {
  if (i === 2 || i === 3) continue;
  document.getElementById("demo").innerHTML += i + "<br>";
}

文本的结果将是:

1
4
5
6
7
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实例

在本例中,我们将 for 循环与 continue 语句一起使用。

循环遍历数组,但跳过数组元素 "Saab":

var cars = ["BMW", "Volvo", "Saab", "Ford"];
var text = "";
var i;
for (i = 0; i < cars.length; i++) {
  if (cars[i] === "Saab") {
    continue;
  }
  text += cars[i] + "<br>";
}

文本的结果将是:

BMW
Volvo
Ford
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实例

使用带有标签引用的 continue 语句,跳过嵌套 for 循环中的值:

var text = "";
var i, j;

Loop1: // The first for loop is labeled "Loop1"
for (i = 0; i < 3; i++) {
text += "<br>" + "i = " + i + ", j = ";

  Loop2: // The second for loop is labeled "Loop2"
  for (j = 10; j < 15; j++) {
    if (j === 12) {
      continue Loop2;
    }
    document.getElementById("demo").innerHTML = text += j + " ";
  }
}
亲自试一试 »

相关页面

JavaScript 教程: JavaScript Break 和 Continue

JavaScript 教程: JavaScript For 循环

JavaScript 教程: JavaScript While 循环

JavaScript 教程: JavaScript break 语句

JavaScript 参考手册: JavaScript for 语句

JavaScript 参考手册: JavaScript while 语句