5075f14248
* chore(i8n,learn): processed translations * Update curriculum/challenges/chinese/01-responsive-web-design/applied-visual-design/use-the-u-tag-to-underline-text.md Co-authored-by: Randell Dawson <5313213+RandellDawson@users.noreply.github.com> Co-authored-by: Crowdin Bot <support+bot@crowdin.com> Co-authored-by: Nicholas Carrigan (he/him) <nhcarrigan@gmail.com> Co-authored-by: Randell Dawson <5313213+RandellDawson@users.noreply.github.com>
119 lines
2.9 KiB
Markdown
119 lines
2.9 KiB
Markdown
---
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id: bad87fee1348bd9aed808826
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title: 使用 jQuery 禁用元素
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challengeType: 6
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forumTopicId: 17563
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dashedName: disable-an-element-using-jquery
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---
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# --description--
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还能用 jQuery 改变 HTML 标签的非 CSS 属性， 例如：禁用按钮。
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当禁用按钮时，它将变成灰色并无法点击。
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jQuery 有一个 `.prop()` 方法，可以用其调整标签的属性。
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下面是禁用所有的按钮的代码：
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`$("button").prop("disabled", true);`
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禁用 `target1` 按钮。
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# --hints--
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应该禁用 `target1` 按钮。
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```js
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assert(
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$('#target1') &&
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$('#target1').prop('disabled') &&
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code.match(/["']disabled["'],( true|true)/g)
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);
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```
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不应该禁用其它的按钮。
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```js
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assert($('#target2') && !$('#target2').prop('disabled'));
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```
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应该仅用 jQuery 更改元素属性。
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```js
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assert(!code.match(/disabled[^<]*>/g));
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```
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# --seed--
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## --seed-contents--
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```html
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<script>
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$(document).ready(function() {
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$("#target1").css("color", "red");
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});
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</script>
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<!-- Only change code above this line -->
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<div class="container-fluid">
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<h3 class="text-primary text-center">jQuery Playground</h3>
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<div class="row">
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<div class="col-xs-6">
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<h4>#left-well</h4>
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<div class="well" id="left-well">
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<button class="btn btn-default target" id="target1">#target1</button>
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<button class="btn btn-default target" id="target2">#target2</button>
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<button class="btn btn-default target" id="target3">#target3</button>
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</div>
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</div>
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<div class="col-xs-6">
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<h4>#right-well</h4>
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<div class="well" id="right-well">
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<button class="btn btn-default target" id="target4">#target4</button>
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<button class="btn btn-default target" id="target5">#target5</button>
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<button class="btn btn-default target" id="target6">#target6</button>
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</div>
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</div>
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</div>
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</div>
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```
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# --solutions--
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```html
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<script>
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$(document).ready(function() {
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$("#target1").css("color", "red");
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$("#target1").prop("disabled", true);
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});
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</script>
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<!-- Only change code above this line -->
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<div class="container-fluid">
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<h3 class="text-primary text-center">jQuery Playground</h3>
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<div class="row">
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<div class="col-xs-6">
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<h4>#left-well</h4>
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<div class="well" id="left-well">
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<button class="btn btn-default target" id="target1">#target1</button>
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<button class="btn btn-default target" id="target2">#target2</button>
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<button class="btn btn-default target" id="target3">#target3</button>
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</div>
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</div>
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<div class="col-xs-6">
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<h4>#right-well</h4>
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<div class="well" id="right-well">
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<button class="btn btn-default target" id="target4">#target4</button>
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<button class="btn btn-default target" id="target5">#target5</button>
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<button class="btn btn-default target" id="target6">#target6</button>
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</div>
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</div>
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</div>
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</div>
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```
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