如何在每個完整的三個單詞后插入換行符？

Question

我想在使用Javascript或typescript或angular 8的句子或段落的每個完整的三個單詞之后插入一個換行符<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);

通過這種方式，分隔線在后面插入了 40 個字符。 但是我想在完成三個單詞后插入換行符。

Answer 1

這就是 javascript reduce 派上用場的地方，您可以根據自己的需要定制它..

  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(' ')