const regex = /script src=["']?(\w+\.js)/g;
// Alternative syntax using RegExp constructor
// const regex = new RegExp('script src=["\']?(\\w+\\.js)', 'g')
const str = `var a = '<script class="anyClass" src="anyFile.js" id="anyID">';
var b = '<script class="anyClass" src="anyFile.js">';
var c = '<script src="anyFile.js" id="anyID">';
var d = '<script src="anyFile.js">';
var e = "<script class='anyClass' src='anyFile.js' id='anyID'>";
var f = "<script class='anyClass' src='anyFile.js'>";
var g = "<script src='anyFile.js' id='anyID'>";
var h = "<script src='anyFile.js'>";
var i= "<script class=anyClass src=anyFile.js id=anyID>";
var j= "<script class=anyClass src=anyFile.js>";
var k= "<script src=anyFile.js id=anyID>";
var l= "<script src=anyFile.js>";`;
// Reset `lastIndex` if this regex is defined globally
// regex.lastIndex = 0;
let m;
while ((m = regex.exec(str)) !== null) {
// This is necessary to avoid infinite loops with zero-width matches
if (m.index === regex.lastIndex) {
regex.lastIndex++;
}
// The result can be accessed through the `m`-variable.
m.forEach((match, groupIndex) => {
console.log(`Found match, group ${groupIndex}: ${match}`);
});
}
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for JavaScript, please visit: https://developer.mozilla.org/en/docs/Web/JavaScript/Guide/Regular_Expressions