如何在每满三个单词后插入换行符？

Question

我想使用Javascript、typescript或angular 8在句子或段落中每完成三个单词后插入一个换行符<br/>。

let temText = 'Dummy text refers to the bits of content that are used to fill a website mock-up.';

let info = temText.replace(/(.{40})/g, '$1<br>');
console.log('After Break: ', info);

这样，换行符正好在后面插入40个字符。但我想在完成三个单词后插入分隔线。

Answer 1

这就是javascript reduce派上用场的地方，您可以根据自己的需要对其进行定制。

  const paragraph = "Know someone who can answer? Share a link to this question via email, Twitter, or Facebook"


let paragraphWithBreaks = paragraph.split(' ')
 .reduce((accum, curr, idx) => {
  if (idx && (idx+1)%3 === 1) {
   return [...accum,  "</br>", curr]
  } else return [...accum, curr]
 }, [])
.join(' ')