JavaScript Numbers are always stored in double-precision 64-bit binary format IEEE 754. The types of number literals You can use decimal, binary, octal, and hexadecimal.
Syntax:
Number(object)
Javascript
function func() {
let a = true ;
let value = Number(a);
console.log(value);
}
func();
|
Output
1
The complete list of JavaScript Numbers is listed below:
JavaScript Number Constructor: In JavaScript, a constructor gets called when an object is created using the new keyword.
Constructor | Description | Example |
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Number() | Returns the number format for any type of javascript variable. | |
JavaScript Number Properties: A JavaScript property is a member of an object that associates a key with a value. There are two types of Number properties in JavaScript.
- Static Property: A static property is a property that has the same value for the entire class.
Static Properties | Description | Example |
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EPSILON | Shows the difference between 1 and the smallest floating point number which is greater than 1. | |
MAX_SAFE_INTEGER | Represents the maximum safe integer. | |
MAX_VALUE | Represent maximum numeric values. | |
MIN_SAFE_INTEGER | Represents the minimum safe integer. | |
MIN_VALUE | Represent minimum numeric values. | |
NaN | Represents a value that is not a valid number. | |
NEGATIVE_INFINITY | Represents the largest negative value i.e negative infinity. | |
POSITIVE_INFINITY | Represents the largest positive value i.e positive infinity. | |
- Instance Property: An instance property is a property that has a new copy for every new instance of the class.
Instance Properties | Description | Example |
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constructor | Return the number constructor function for the object. | |
JavaScript Number Methods: JavaScript methods are the actions that can be performed on objects. There are types of Number methods in JavaScript.
- Static Method: If the method is called using the Number class itself then it is called a static method.
Static Methods | Description | Example |
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isNaN() | Determine whether the passed value is NaN(Not a Number) and is of the type “Number”. | |
isFinite() | Check whether the passed value is a finite number or not. | |
isInteger() | Returns true if the passed value is an integer, otherwise false. | |
isSafeInteger() | Check the provided value is a number that is a safe integer. | |
parseFloat() | Accept the string and convert it into a floating-point number. | |
parseInt() | Manipulate numbers whether it is negative or positive. | |
- Instance Method: If the method is called on an instance of a number then it is called an instance method.
Instance Methods | Description | Example |
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toExponential() | Returns a string representing the Number object in exponential notation. | |
toFixed() | Format a number using fixed-point notation. | |
toLocaleString() | Converts a number into a string, using a local language format. | |
toPrecision() | Format a number to a specific precision or length. | |
toString() | Return a string representing the specified Number object. | |
valueOf() | Return the primitive value of a number. | |