81 lines
2.8 KiB
Markdown
81 lines
2.8 KiB
Markdown
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---
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id: cf1111c1c12feddfaeb2bdef
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title: Generate Random Whole Numbers within a Range
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challengeType: 1
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videoUrl: ''
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localeTitle: 生成范围内的随机整数
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---
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## Description
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<section id="description">我们可以生成一个落在两个特定数字范围内的随机数，而不是像我们之前那样在零和给定数字之间生成一个随机数。为此，我们将定义最小数量<code>min</code>和最大数量<code>max</code> 。这是我们将使用的公式。花一点时间阅读它并尝试理解这段代码在做什么： <code>Math.floor(Math.random() * (max - min + 1)) + min</code> </section>
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## Instructions
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<section id="instructions">创建一个名为<code>randomRange</code>的函数，它接受一个范围<code>myMin</code>和<code>myMax</code>并返回一个大于或等于<code>myMin</code>的随机数，并且小于或等于<code>myMax</code> （包括<code>myMax</code> ）。 </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>randomRange</code>可以生成的最低随机数应该等于你的最小数量<code>myMin</code> 。
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testString: 'assert(calcMin === 5, "The lowest random number that can be generated by <code>randomRange</code> should be equal to your minimum number, <code>myMin</code>.");'
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- text: <code>randomRange</code>可以生成的最高随机数应该等于最大数量<code>myMax</code> 。
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testString: 'assert(calcMax === 15, "The highest random number that can be generated by <code>randomRange</code> should be equal to your maximum number, <code>myMax</code>.");'
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- text: <code>randomRange</code>生成的随机数应该是整数，而不是小数。
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testString: 'assert(randomRange(0,1) % 1 === 0 , "The random number generated by <code>randomRange</code> should be an integer, not a decimal.");'
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- text: <code>randomRange</code>应该同时使用<code>myMax</code>和<code>myMin</code> ，并在你的范围内返回一个随机数。
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testString: 'assert((function(){if(code.match(/myMax/g).length > 1 && code.match(/myMin/g).length > 2 && code.match(/Math.floor/g) && code.match(/Math.random/g)){return true;}else{return false;}})(), "<code>randomRange</code> should use both <code>myMax</code> and <code>myMin</code>, and return a random number in your range.");'
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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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// Example
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function ourRandomRange(ourMin, ourMax) {
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return Math.floor(Math.random() * (ourMax - ourMin + 1)) + ourMin;
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}
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ourRandomRange(1, 9);
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// Only change code below this line.
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function randomRange(myMin, myMax) {
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return 0; // Change this line
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}
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// Change these values to test your function
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var myRandom = randomRange(5, 15);
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```
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</div>
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### After Test
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<div id='js-teardown'>
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```js
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console.info('after the test');
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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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