计算字符串中的单词 [英] Counting words in string

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本文介绍了计算字符串中的单词的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

问题描述

function WordCount(str) {
  var totalSoFar = 0;
  for (var i = 0; i < WordCount.length; i++)
    if (str(i) === " ") { // if a space is found in str
      totalSoFar = +1; // add 1 to total so far
  }
  totalsoFar += 1; // add 1 to totalsoFar to account for extra space since 1 space = 2 words
}

console.log(WordCount("Random String"));

我想我已经很好了,除了我认为如果声明错误。我如何说如果(str(i)包含空格,请加1。

I think I have got this down pretty well, except I think that the if statement is wrong. How do I say if(str(i) contains a space, add 1.

编辑:

我发现(感谢Blender)我可以用更少的代码执行此操作:

I found out (thanks to Blender) that I can do this with a lot less code:

function WordCount(str) { 
  return str.split(" ").length;
}

console.log(WordCount("hello world"));


推荐答案

使用square括号,而不是括号:

Use square brackets, not parentheses:

str[i] === " "

charAt

str.charAt(i) === " "

你也可以使用 .split()

return str.split(' ').length;

这篇关于计算字符串中的单词的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!

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