Question

如果我有一串文字，我该如何将该字符串转换为字符串中每个单词的数组？

类似的东西：

var wordArray = [];
var words = 'never forget to empty your vacuum bags';

for ( //1 ) {
wordArray.push( //2 );
}

1 =遍历名为words的字符串中的每个单词 2 =将该字推送到数组

这将创建以下数组：

var wordArray = ['never','forget','to','empty','your','vacuum','bags'];

Answer 1

不要迭代，只需使用返回数组的split() ：

var words = 'never forget to empty your vacuum bags',
    wordArray = words.split(' ');

console.log(wordArray); // ["never", "forget", "to", "empty", "your", "vacuum", "bags"]

JS Fiddle demo

参考文献：

String.split()。

Answer 2

非正则表达式选项的另一种解决方案。

let words = '     practice   makes   perfect  ',
  wordArray = words.split(' ').filter(w => w !== '');

console.log(wordArray);

或仅使用String.prototype.match()

let words = '     practice   makes   perfect  ',
  wordArray = words.match(/\S+/g);

console.log(wordArray);

Answer 3

如果您想遍历数组，请使用：

let wordArray = [];
let words = 'never forget to empty your vacuum bags';

let wordsSplit = words.split(" ");
for(let i=0;i<wordsSplit.length;i++) {
    wordArray.push(wordsSplit[i])
}

但不迭代而只使用更有意义：

let words = 'never forget to empty your vacuum bags';
let arrOfWords = words.split(" ")

将每个单词推送到一个数组

3 个答案: