javascript - 在字符串中的完整大写标题后添加换行符

Question

我目前正在开发一个项目，其中的 API 吐出格式如下的描述:

THIS IS A TITLE This is a paragraph. This is another paragraph.

我想得到的结果是

THIS IS A TITLE

This is a paragraph

This is another paragraph

我一直在玩一些正则表达式，但很难得到想要的结果，我目前的尝试是在每个大写字母/单词的末尾添加一个换行符。

var myString = "THIS IS A TITLE This is a paragraph of random text. This is another paragraph of random text.";
var myStringFormatted = myString.replace(/([A-Z]+)/g, ",$1").replace(/,/g," <br />").split(",");

是否可以得到想要的结果？ (jsfiddle 示例:https://jsfiddle.net/srwwpxh4/1/)

Answer 1

您可以使用积极的前瞻。

它首先查找非单词字符，然后是大写字符和小写字符，并在之前插入换行符。

var r = /\W+(?=[A-Z][a-z])/g,
    s = 'THIS IS A TITLE This is a paraGraph. This is another paragraph.';

console.log(s.replace(r, '$&\n'));