Here's something fun to show people. Watch how long the JSON string becomes between an array and an object in these two scenarios:
var a = []; a[1111] = 1234; a[2222] = 1234; console.log(JSON.stringify(a));
as opposed to:
var a = {}; a[1111] = 1234; a[2222] = 1234; console.log(JSON.stringify(a));
Key point -- you'll often want to use objects instead of arrays.
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Here's something fun to show people. Watch how long the JSON string becomes between an array and an object in these two scenarios:
var a = [];
a[1111] = 1234;
a[2222] = 1234;
console.log(JSON.stringify(a));
as opposed to:
var a = {};
a[1111] = 1234;
a[2222] = 1234;
console.log(JSON.stringify(a));
Key point -- you'll often want to use objects instead of arrays.