javascript float to int

1function float2int (value) {
2    return value | 0;
3}
4
5float2int(3.75); //3 - always just truncates decimals
6
7//other options
8Math.floor( 3.75 );//3 - goes to floor , note (-3.75 = -4)
9Math.ceil( 3.75 ); //4 - goes to ceiling, note (-3.75 = -3)
10Math.round( 3.75 );//4 

1var num = 1234
2number.toString().length; // 4

1var value = 2.9802453587962963;
2var wholeNum = Math.floor(value);
3console.log(wholeNum);  // output ==> 2

1console.log(23.9 | 0);  // Result: 23
2console.log(-23.9 | 0); // Result: -23
3

1// x = Number.MAX_SAFE_INTEGER/10 * -1 // -900719925474099.1
2
3// value = x      // x=-900719925474099   x=-900719925474099.5 x=-900719925474099.6
4
5Math.floor(value) // -900719925474099     -900719925474100     -900719925474100
6Math.ceil(value)  // -900719925474099     -900719925474099     -900719925474099
7Math.round(value) // -900719925474099     -900719925474099     -900719925474100
8Math.trunc(value) // -900719925474099     -900719925474099     -900719925474099
9parseInt(value)   // -900719925474099     -900719925474099     -900719925474099
10value | 0         // -858993459           -858993459           -858993459
11~~value           // -858993459           -858993459           -858993459
12value >> 0        // -858993459           -858993459           -858993459
13value >>> 0       //  3435973837           3435973837           3435973837
14value - value % 1 // -900719925474099     -900719925474099     -900719925474099
15

1var myInt = 69420
2
31+1//int
41+"1"//string