Lets say I have a string: "This is a string of words that I want to pair"
I ideally want this as the result:
["This is", "is a", "a string"....]
I have this regex:
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)]
But it is returning:
["This is", "a string", "of words"...]
How do I correct this?
Why use a regex for that, a simple loop with a split would work perfectly. :
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);
You may use this regex with a lookahead:
/\b(\w+)(?=(\s+\w+))/g
This regex matches a single word with a lookahead condition that says that matches word must be followed by 1+ whitespaces followed by another word. We capture matched word and lookahead word in 2 separate groups that we have to concatenate in final result.
const s = 'This is a string of words that I want to pair';
const regex = /\b(\w+)(?=(\s+\w+))/g;
var result = [];
var m;
while ((m = regex.exec(s)) != null) {
result.push(m[1] + m[2]);
}
console.log(result);
I think something like that should works:
const s = "This is a string of words that I want to pair";
console.log([...(s.matchAll(/[^ ]+(?: [^ ]+)?/g))]);This should produce an array of 6 element, 5 pairs plus "pair" alone at the end.
