&& in javascript w3schools code example
Example 1: === javascript
// === means equal value and equal type
var x = 5
// true
x === 5
// false
x === "5"
Example 2: jquery AND operation
$('[myc="blue"][myid="1"][myid="3"]');
// === means equal value and equal type
var x = 5
// true
x === 5
// false
x === "5"
$('[myc="blue"][myid="1"][myid="3"]');