number

number — A primitive number.

Description

number

Examples

Example #1 – number

Run
var a = 1;
var b = new Number(1);
console.log(typeof a);          // number
console.log(typeof b);          // object
console.log(a);                 // 1
console.log(b);                 // Number {1}
console.log(a.toFixed(2));      // 1.00
console.log(b.toFixed(2));      // 1.00

Example #2 – number

Run
var a = 1.5;
var b = new Number(1.5);
a.x = 2;
b.x = 2;
console.log(a);                 // 1.5
console.log(b);                 // Number {1.5, x: 2}
console.log(a.x);               // undefined
console.log(b.x);               // 2
console.log(a.toFixed(2));      // 1.50
console.log(b.toFixed(2));      // 1.50

See also

• Number object

External references

• Mozilla: number