用JavaScript计数字 [英] Count words with JavaScript

问题描述

我是一个新的编码，所以我想知道如何可以用javascript来计算网站的字。我应该使用 .innerText 还是代替

I am new to coding, so I would like to know how I can count words of an website with javascript. Should I use .innerText and a for loop?

推荐答案

拆分正则表达式 / \ W + / （ \W 匹配任何不是拉丁字母或阿拉伯数字或下划线的内容）：

Split on regular expression /\W+/ (\W matches anything that is not a latin letter or arabic number or an underscore) :

var text = "These are two sentences. They have ten words in total.";

alert(text.split(/\W+/).length)

有关regexp的更多细节可以在MDN上找到：
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp

More details on regexp can by found on MDN: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp

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