Regex: Extract a value using regex groups

// TODO: READ: https://javascript.info/regexp-introduction https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/replaceAll https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Regular_Expressions/Groups_and_Ranges

.match() returns an array. [1] is the first match

"at fourStandAlone (script.js:43:5)'".match(/at (\w+)/)[1];

Easiest way for many result

var res = str.matchAll(/href="\/(lessons.+)">/g);

// matchAll is new and reutrns an iterable
var arr = Array.from(res)



	arr[0][1]; // [1] is the capture group result

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Regex: Extract a value using regex groups

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