Object - Data Type
An array is a special type of object and is a reference data type.
Arrays should be used when you have ordered data.
let people = ["steve"]
let array2 = people
alert ( people ==== array2 ) // two variable references
people.push ("john")
alert ( array2 ) // "steve","john"
var people = [];
people[0] = "steve";
people[1] = "john";
people[2] = "david";
This is the array literal
var people = ["steve", "john", "david"];
This uses the keyword Array
var people = new Array("steve", "john", "david");
Trailing Comma
Arrays can include a trailing comma
var people = [
"steve",
"john",
"david",
];
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