freeCodeCamp/curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/functional-programming/split-a-string-into-an-array-using-the-split-method.chinese.md

id, title, challengeType, forumTopicId, localeTitle

id	title	challengeType	forumTopicId	localeTitle
587d7daa367417b2b2512b6b	Split a String into an Array Using the split Method	1	18305	使用 split 方法将字符串拆分成数组

Description

split方法用于把字符串分割成字符串数组，接收一个分隔符参数，分隔符可以是用于分解字符串或正则表达式的字符。举个例子，如果分隔符是空格，你会得到一个单词数组；如果分隔符是空字符串，你会得到一个由字符串中每个字符组成的数组。 下面是两个用空格分隔一个字符串的例子，另一个是用数字的正则表达式分隔：

var str = "Hello World";
var bySpace = str.split(" ");
// Sets bySpace to ["Hello", "World"]

var otherString = "How9are7you2today";
var byDigits = otherString.split(/\d/);
// Sets byDigits to ["How", "are", "you", "today"]

因为字符串是固定的，split方法可以更简单的操作它们。

Instructions

在splitify函数中用split方法将str分割成单词数组，这个方法应该返回一个数组。单词不一定都是用空格分隔，所以数组中不应包含标点符号。

Tests

tests:
  - text: 应该使用<code>split</code>方法。
    testString: assert(code.match(/\.split/g));
  - text: "<code>splitify('Hello World,I-am code')</code>应返回<code>['Hello', 'World', 'I', 'am', 'code']</code>。"
    testString: assert(JSON.stringify(splitify("Hello World,I-am code")) === JSON.stringify(["Hello", "World", "I", "am", "code"]));
  - text: "<code>splitify('Earth-is-our home')</code>应返回<code>['Earth', 'is', 'our', 'home']</code>。"
    testString: assert(JSON.stringify(splitify("Earth-is-our home")) === JSON.stringify(["Earth", "is", "our", "home"]));
  - text: "<code>splitify('This.is.a-sentence')</code>应返回<code>['This', 'is', 'a', 'sentence']</code>。"
    testString: assert(JSON.stringify(splitify("This.is.a-sentence")) === JSON.stringify(["This", "is", "a", "sentence"]));

Challenge Seed

function splitify(str) {
  // Add your code below this line


  // Add your code above this line
}
splitify("Hello World,I-am code");

Solution

function splitify(str) {
  // Add your code below this line
  return str.split(/\W/);
  // Add your code above this line
}