JSFiddle - React, Tailwind, and code Playground

JavaScript

function printLineNumber(n) {
    console.log(n);
}

setTimeout( function() {
console.log('timeout');
printLineNumber((new Error).stack.match(/:(\d+):\d+\b/i)[1]);
}, 1000);

console.log('simple')
printLineNumber((new Error).stack.match(/:(\d+):\d+\b/i)[1]);


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