How to get substring before a character?
Learn to extract the civic number of an adress, 3 ways in vanilla JavaScript
JavaScript
JavaScript is the most popular programming language of the web.
/ What's the difference between substr() and substring()?
Stop confusing the JavaScript functions substr and substring. Learn how they are different and when to use them.
/ How to find code that changes particular CSS properties
Learn how to find code that changes a particular CSS property. Pretty useful to debug CSS.
/ console.log vs console.dir
Learn the difference between console.log and console.dir, two JavaScript functions useful to debug
/ Why is document.body null?
Learn 2 ways to fix the common document.body is null error in JavaSCript.
/ The ultimate guide to JavaScript console log
console.log is the first tool to use in the JavaScript debugging toolbox. Become a king of debugging with this tutorial.
/ How to compare the performance of different functions
Learn how to measure the performance of functions in JavaScript
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