freeCodeCamp/increment-a-number-with-javascript.chinese.md at 33d0db176a23bb18a322ad27f696596007aa96e5

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2018-10-11 03:33:03 +05:30

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id, title, challengeType, videoUrl, localeTitle

id	title	challengeType	videoUrl	localeTitle
56533eb9ac21ba0edf2244ac	Increment a Number with JavaScript	1		使用JavaScript增加数字

Description

您可以轻松地增加或添加一个变量与++运算符。 i++;相当于i = i + 1; 注意
整行成为i++; ，消除了对等号的需要。

Instructions

更改代码以在myVar上使用++运算符。暗示
了解有关算术运算符的更多信息- 增量（++）。

Tests

tests:
  - text: <code>myVar</code>应该等于<code>88</code>
    testString: 'assert(myVar === 88, "<code>myVar</code> should equal <code>88</code>");'
  - text: <code>myVar = myVar + 1;</code>应该改变
    testString: 'assert(/var\s*myVar\s*=\s*87;\s*\/*.*\s*([+]{2}\s*myVar|myVar\s*[+]{2});/.test(code), "<code>myVar = myVar + 1;</code> should be changed");'
  - text: 使用<code>++</code>运算符
    testString: 'assert(/[+]{2}\s*myVar|myVar\s*[+]{2}/.test(code), "Use the <code>++</code> operator");'
  - text: 不要更改行上方的代码
    testString: 'assert(/var myVar = 87;/.test(code), "Do not change code above the line");'

Challenge Seed

var myVar = 87;

// Only change code below this line
myVar = myVar + 1;

After Test

console.info('after the test');

Solution

// solution required

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