JavaScript Repository

This is a place I'm dumping some javaScript procedures I frequently forget the exact syntax for.

Basics

Shorthand if statement: (testCondition) ? (trueResult) : (falseResult);

Optional variable default: variable2 = varible1 || "new";

isNumber test !isNan(someVariable);

Array

Remove elemenent fruits.splice(3,1) removes zero-based position from array.

Includes: fruits.includes('apple'); returns true false if exists

Loops Shorthand for (let item of myArray)

Math

Mode: 3 % 2;