freeCodeCamp/curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/write-reusable-javascript-with-functions.chinese.md

id, title, challengeType, videoUrl, localeTitle

id	title	challengeType	videoUrl	localeTitle
56bbb991ad1ed5201cd392cf	Write Reusable JavaScript with Functions	1		用函数编写可重用的JavaScript

Description

在JavaScript中，我们可以将代码划分为称为函数的可重用部分。这是一个函数的例子：

function functionName（）{
console.log（“Hello World”）;
}

您可以使用其名称后跟括号来调用或调用此函数，如下所示： functionName();每次调用该函数时，它都会在开发控制台上打印出"Hello World"消息。每次调用函数时，都会执行大括号之间的所有代码。

Instructions

1. 创建一个名为reusableFunction的函数，它将"Hi World"打印到开发控制台。
2. 调用该功能。

Tests

tests:
  - text: <code>reusableFunction</code>应该是一个函数
    testString: 'assert(typeof reusableFunction === "function", "<code>reusableFunction</code> should be a function");'
  - text: <code>reusableFunction</code>应该将“Hi World”输出到开发控制台
    testString: 'assert("Hi World" === logOutput, "<code>reusableFunction</code> should output "Hi World" to the dev console");'
  - text: 定义后调用<code>reusableFunction</code>
    testString: 'assert(/^\s*reusableFunction\(\)\s*;/m.test(code), "Call <code>reusableFunction</code> after you define it");'

Challenge Seed

// Example
function ourReusableFunction() {
  console.log("Heyya, World");
}

ourReusableFunction();

// Only change code below this line

Before Test

var logOutput = "";
var originalConsole = console
function capture() {
    var nativeLog = console.log;
    console.log = function (message) {
        if(message && message.trim) logOutput = message.trim();
        if(nativeLog.apply) {
          nativeLog.apply(originalConsole, arguments);
        } else {
          var nativeMsg = Array.prototype.slice.apply(arguments).join(' ');
          nativeLog(nativeMsg);
        }
    };
}

function uncapture() {
  console.log = originalConsole.log;
}

capture();

After Test

console.info('after the test');

Solution

// solution required