77 lines
3.1 KiB
Markdown
77 lines
3.1 KiB
Markdown
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---
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id: 56533eb9ac21ba0edf2244d7
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title: Comparison with the Less Than Or Equal To Operator
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challengeType: 1
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videoUrl: ''
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localeTitle: 与小于或等于运算符的比较
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---
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## Description
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<section id="description"> <code>less than or equal to</code>运算符（ <code><=</code> ）比较两个数字的值。如果左边的数字小于或等于右边的数字，则返回<code>true</code> 。如果左侧的数字大于右侧的数字，则返回<code>false</code> 。与等于运算符一样， <code>less than or equal to</code>转换数据类型。 <strong>例子</strong> <blockquote> 4 <= 5 //是的<br> '7'<= 7 //是的<br> 5 <= 5 //是的<br> 3 <= 2 //假<br> '8'<= 4 //假</blockquote></section>
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## Instructions
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<section id="instructions">将<code>less than or equal to</code>运算符添加到指示的行，以便返回语句有意义。 </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>testLessOrEqual(0)</code>应该返回“小于或等于12”
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testString: 'assert(testLessOrEqual(0) === "Smaller Than or Equal to 12", "<code>testLessOrEqual(0)</code> should return "Smaller Than or Equal to 12"");'
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- text: <code>testLessOrEqual(11)</code>应返回“小于或等于12”
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testString: 'assert(testLessOrEqual(11) === "Smaller Than or Equal to 12", "<code>testLessOrEqual(11)</code> should return "Smaller Than or Equal to 12"");'
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- text: <code>testLessOrEqual(12)</code>应返回“小于或等于12”
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testString: 'assert(testLessOrEqual(12) === "Smaller Than or Equal to 12", "<code>testLessOrEqual(12)</code> should return "Smaller Than or Equal to 12"");'
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- text: <code>testLessOrEqual(23)</code>应返回“小于或等于24”
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testString: 'assert(testLessOrEqual(23) === "Smaller Than or Equal to 24", "<code>testLessOrEqual(23)</code> should return "Smaller Than or Equal to 24"");'
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- text: <code>testLessOrEqual(24)</code>应返回“小于或等于24”
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testString: 'assert(testLessOrEqual(24) === "Smaller Than or Equal to 24", "<code>testLessOrEqual(24)</code> should return "Smaller Than or Equal to 24"");'
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- text: <code>testLessOrEqual(25)</code>应该返回“超过24”
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testString: 'assert(testLessOrEqual(25) === "More Than 24", "<code>testLessOrEqual(25)</code> should return "More Than 24"");'
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- text: <code>testLessOrEqual(55)</code>应该返回“超过24”
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testString: 'assert(testLessOrEqual(55) === "More Than 24", "<code>testLessOrEqual(55)</code> should return "More Than 24"");'
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- text: 你应该至少使用<code><=</code>运算符两次
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testString: 'assert(code.match(/val\s*<=\s*("|")*\d+("|")*/g).length > 1, "You should use the <code><=</code> operator at least twice");'
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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 testLessOrEqual(val) {
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if (val) { // Change this line
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return "Smaller Than or Equal to 12";
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}
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if (val) { // Change this line
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return "Smaller Than or Equal to 24";
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}
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return "More Than 24";
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}
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// Change this value to test
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testLessOrEqual(10);
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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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