TLDR Web Dev · ARTICLES & TUTORIALS

RE-IMPLEMENTING JAVASCRIPT'S == IN JAVASCRIPT

evanhahn.com13 min read

Summary from the TLDR Web Dev newsletter

This is an article on how to reimplement JavaScript's == operator in pure JavaScript without using the operator itself. It walks through each step of the Abstract Equality Comparison Algorithm, which shows the underlying behavior of the operator and the different complexities of JavaScript's type coercion.