JSFiddle - React, Tailwind, and code Playground

by Alon Adler

JavaScript

var originalString = "# Mandatory parameter\n#EPCDatabase/EPCdatabase.param/epc.db.user=\n# Mandatory parameter";

var regexExpression = new RegExp('#EPCDatabase\/EPCdatabase.param\/epc.db.user=.*$', "im");
var replaceSting = "EPCDatabase\/EPCdatabase.param\/epc.db.user=ddddddddddddddddd";
var newPropertiesText = originalString.replace(regexExpression, replaceSting);
alert(originalString);
alert(newPropertiesText);