如何使用JavaScript将字符串中每个单词的首字母大写? [英] How can I capitalize the first letter of each word in a string using JavaScript?

问题描述

我正在尝试编写一个函数，该函数将字符串中每个单词的首字母大写(将字符串转换为标题大小写).

I'm trying to write a function that capitalizes the first letter of every word in a string (converting the string to title case).

例如，当输入为我是小茶壶" 时，我希望我是小茶壶" 是输出.但是，该函数返回我是个小茶壶" .

For instance, when the input is "I'm a little tea pot", I expect "I'm A Little Tea Pot" to be the output. However, the function returns "i'm a little tea pot".

这是我的代码:

function titleCase(str) {
  var splitStr = str.toLowerCase().split(" ");

  for (var i = 0; i < splitStr.length; i++) {
    if (splitStr.length[i] < splitStr.length) {
      splitStr[i].charAt(0).toUpperCase();
    }

    str = splitStr.join(" ");
  }

  return str;
}

console.log(titleCase("I'm a little tea pot"));

推荐答案

您正在使复杂的事情变得非常容易.您可以在CSS中添加它:

You are making complex a very easy thing. You can add this in your CSS:

.capitalize {
    text-transform: capitalize;
}

在JavaScript中，您可以将类添加到元素

In JavaScript, you can add the class to an element

 document.getElementById("element").className = "capitalize";

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