How to create dictionary and add key–value pairs dynamically?

Question

From post:

Sending a JSON array to be received as a Dictionary

I’m trying to do this same thing as that post. The only issue is that I d

Answer 1

An improvement on var dict = {} is to use var dict = Object.create(null).

This will create an empty object that does not have Object.prototype as it's prototype.

var dict1 = {};
if (dict1["toString"]){
    console.log("Hey, I didn't put that there!")
}
var dict2 = Object.create(null);
if (dict2["toString"]){
    console.log("This line won't run :)")
}