JavaScript dictionary with names

Question

I want to create a dictionary in JavaScript like the following:

myMappings = [
    { "Name": 10%},
    { "Phone": 10%},
    { "Addres         


        

Answer 1

An easier, native and more efficient way of emulating a dict in JavaScript than a hash table:

It also exploits that JavaScript is weakly typed. Rather type inference.

Here's how (an excerpt from Google Chrome's console):

var myDict = {};

myDict.one = 1;
1

myDict.two = 2;
2

if (myDict.hasOwnProperty('three'))
{
  console.log(myDict.two);
}
else
{
  console.log('Key does not exist!');
}
Key does not exist! VM361:8

if (myDict.hasOwnProperty('two'))
{
  console.log(myDict.two);
}
else
{
  console.log('Key does not exist!');
}
2 VM362:4

Object.keys(myDict);
["one", "two"]

delete(myDict.two);
true

myDict.hasOwnProperty('two');
false

myDict.two
undefined

myDict.one
1