67 lines
3.3 KiB
Markdown
67 lines
3.3 KiB
Markdown
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---
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id: a5deed1811a43193f9f1c841
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title: Drop it
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isRequired: true
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challengeType: 5
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videoUrl: ''
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localeTitle: 算了吧
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---
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## Description
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<section id="description">给定数组<code>arr</code> ，迭代并从第一个元素（0索引）开始删除每个元素，直到函数<code>func</code>在迭代元素通过它时返回<code>true</code> 。然后在条件满足后返回数组的其余部分，否则， <code>arr</code>应作为空数组返回。如果卡住，请记得使用<a href="http://forum.freecodecamp.org/t/how-to-get-help-when-you-are-stuck/19514" target="_blank">Read-Search-Ask</a> 。尝试配对程序。编写自己的代码。 </section>
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## Instructions
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<section id="instructions">
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</section>
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## Tests
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<section id='tests'>
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```yml
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tests:
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- text: '<code>dropElements([1, 2, 3, 4], function(n) {return n >= 3;})</code>应该返回<code>[3, 4]</code> 。'
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testString: 'assert.deepEqual(dropElements([1, 2, 3, 4], function(n) {return n >= 3;}), [3, 4], "<code>dropElements([1, 2, 3, 4], function(n) {return n >= 3;})</code> should return <code>[3, 4]</code>.");'
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- text: '<code>dropElements([0, 1, 0, 1], function(n) {return n === 1;})</code>应该返回<code>[1, 0, 1]</code> <code>dropElements([0, 1, 0, 1], function(n) {return n === 1;})</code> <code>[1, 0, 1]</code> 。'
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testString: 'assert.deepEqual(dropElements([0, 1, 0, 1], function(n) {return n === 1;}), [1, 0, 1], "<code>dropElements([0, 1, 0, 1], function(n) {return n === 1;})</code> should return <code>[1, 0, 1]</code>.");'
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- text: '<code>dropElements([1, 2, 3], function(n) {return n > 0;})</code>应该返回<code>[1, 2, 3]</code> 。'
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testString: 'assert.deepEqual(dropElements([1, 2, 3], function(n) {return n > 0;}), [1, 2, 3], "<code>dropElements([1, 2, 3], function(n) {return n > 0;})</code> should return <code>[1, 2, 3]</code>.");'
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- text: '<code>dropElements([1, 2, 3, 4], function(n) {return n > 5;})</code>应返回<code>[]</code> 。'
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testString: 'assert.deepEqual(dropElements([1, 2, 3, 4], function(n) {return n > 5;}), [], "<code>dropElements([1, 2, 3, 4], function(n) {return n > 5;})</code> should return <code>[]</code>.");'
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- text: '<code>dropElements([1, 2, 3, 7, 4], function(n) {return n > 3;})</code>应该返回<code>[7, 4]</code> <code>dropElements([1, 2, 3, 7, 4], function(n) {return n > 3;})</code> <code>[7, 4]</code> 。'
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testString: 'assert.deepEqual(dropElements([1, 2, 3, 7, 4], function(n) {return n > 3;}), [7, 4], "<code>dropElements([1, 2, 3, 7, 4], function(n) {return n > 3;})</code> should return <code>[7, 4]</code>.");'
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- text: '<code>dropElements([1, 2, 3, 9, 2], function(n) {return n > 2;})</code>应该返回<code>[3, 9, 2]</code> <code>dropElements([1, 2, 3, 9, 2], function(n) {return n > 2;})</code> <code>[3, 9, 2]</code> 。'
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testString: 'assert.deepEqual(dropElements([1, 2, 3, 9, 2], function(n) {return n > 2;}), [3, 9, 2], "<code>dropElements([1, 2, 3, 9, 2], function(n) {return n > 2;})</code> should return <code>[3, 9, 2]</code>.");'
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```
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</section>
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## Challenge Seed
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<section id='challengeSeed'>
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<div id='js-seed'>
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```js
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function dropElements(arr, func) {
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// Drop them elements.
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return arr;
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}
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dropElements([1, 2, 3], function(n) {return n < 3; });
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```
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</div>
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</section>
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## Solution
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<section id='solution'>
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```js
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// solution required
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```
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</section>
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