JS Automatic type conversion

<script>

Testeq0 = NULL = = undefined;

testeq1 ="0"= =0; // convert string to number before comparison

testeq2 = 0 = = false ; // Compare Pre-Boolean conversions array

testeq3 = " 0 " == false ; // before comparison string and Boolean values are converted to arrays

Testeq4 = NaN = = undefined; //false

alert (TESTEQ4);

?

X +""; // equivalent to String (x)

+x; // equivalent to Number (x)

x - 0 ; //

!! x; // Double exclamation mark , equivalent to Boolean (x)

</script>

JS Automatic type conversion