Javascript正则表达式匹配所有单词对

Question

这个问题已经有答案了:

How can I match overlapping strings with regex? (6 个回答)

已关闭 3 年前。

假设我有一个字符串:“这是我想要配对的一串单词”

我理想地希望得到这样的结果:

["This is", "is a", "a string"....]

我有这个正则表达式:

let str = "This is a string of words that I want to pair"
let regexp = /\b[0-9A-Za-z]+\s+\b[0-9A-Za-z]+/g

let array = [...str.matchAll(regexp)]

但它正在返回:

["This is", "a string", "of words"...]

如何纠正这个问题？

Answer 1

为什么要使用正则表达式呢，一个带有分割的简单循环就可以完美地工作。 :

let str = "This is a string of words that I want to pair"

let words = str.split(' ');
let finalArray = []
for(var i = 0 ; i < words.length; i++ ) {
  // validate that the next words exists
  if(words[i + 1]) {
    let pairedWords = words[i] + " " + words[i + 1];
    finalArray.push(pairedWords);
  }
}

console.log(finalArray);