serenity/Libraries/LibJS/Tests/instanceof-basic.js at 14047ca4328bf55630fa2c01bfcdfd06ed6975ad - serenity - lab48

eliott/serenity

mirror of https://github.com/SerenityOS/serenity synced 2026-05-10 09:02:44 +02:00

Files

Andreas Kling a3d92b1210 LibJS: Implement the "instanceof" operator

This operator walks the prototype chain of the RHS value and looks for
a "prototype" property with the same value as the prototype of the LHS.

This is pretty cool. :^)

2020-03-28 16:56:54 +01:00

8 lines

108 B

JavaScript

Raw Blame History

 function Foo() {
     this.x = 123;
 }
 var foo = new Foo();
 if (foo instanceof Foo)
     console.log("PASS");