how to use if else in one line in javascript code example

Example 1: how to make one line if in js

// If statement
// if (condition) //code
if (5 > 3) return "Is greater"; // "Is greater"

// If else statement
// (condition) ? if : else
let res = (1 > 3) ? "is greater" : "is less than";// "is less than"

Example 2: one line if else if statement javascript

var variable = (condition) ? (true block) : ((condition2) ? (true block2) : (else block2))