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JavaScript Number Properties

JS Number Properties

JavaScript provides the following number properties that can be used on all JavaScript numbers:

EPSILON The difference between 1 and the smallest number > 1
MAX_VALUE The largest number possible in JavaScript
MIN_VALUE The smallest number possible in JavaScript
MAX_SAFE_INTEGER The maximum safe integer (2⁵³ - 1)
MIN_SAFE_INTEGER The minimum safe integer -(2⁵³ - 1)
Number(); Returns a number converted from its argument
POSITIVE_INFINITY Infinity (returned on overflow)
NEGATIVE_INFINITY Negative infinity (returned on overflow)
Nan A "Not-a-Number" value

JavaScript EPSILON

Number.EPSILON is the difference between the smallest floating point number greater than 1 and expressions):

					 
        
          let a = Number.EPSILON; // a = 2.220446049250313e-16

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JavaScript MAX_VALUE

Number.MAX_VALUE is a constant representing the largest possible number in JavaScript.

					 
        
          let a = Number.MAX_VALUE; // a = 1.7976931348623157e+308

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JavaScript MIN_VALUE

Number.MIN_VALUE is a constant representing the lowest possible number in JavaScript.

					 
        
          let a = Number.MIN_VALUE; // a = 5e-324

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JavaScript MAX_SAFE_INTEGER

Number.MAX_SAFE_INTEGER represents the maximum safe integer in JavaScript. Number.MAX_SAFE_INTEGER is (2⁵³ - 1).

					 
        
          let a = Number.MAX_SAFE_INTEGER; // a = 9007199254740991

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JavaScript MIN_SAFE_INTEGER

Number.MIN_SAFE_INTEGER represents the minimum safe integer in JavaScript. Number.MIN_SAFE_INTEGER is -(2⁵³ - 1).

					 
        
          let a = Number.MIN_SAFE_INTEGER; // a = -9007199254740991

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JavaScript POSITIVE_INFINITY

Number.POSITIVE_INFINITY represents the Infinity. POSITIVE_INFINITY is returned on overflow:

					 
        
          let a = Number.POSITIVE_INFINITY; // a = Infinity
          let b = 1 / 0; // b = Infinity

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JavaScript NEGATIVE_INFINITY

Number.NEGATIVE_INFINITY represents the Negative Infinity. NEGATIVE_INFINITY is returned on overflow:

					 
        
          let a = Number.NEGATIVE_INFINITY; // a = -Infinity
          let b = -1 / 0; // b = -Infinity

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JavaScript NaN - Not a Number

NaN is a JavaScript reserved word for a number that is not a legal number.

					 
        
          let a = Number.NaN; // a = Nan
          let b = 100 / "Apple"; // b = NaN

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Number.EPSILON, MAX_SAFE_INTEGER and MIN_SAFE_INTEGER are ES6 features. They do not work in Internet Explorer.

Number properties belong to the JavaScript Number Object. These properties can only be accessed as Number.MAX_VALUE. Using x.MAX_VALUE, where x is a variable or a value, will return undefined

					 
        
          let a = 6;
          let b = a.MAX_VALUE; // b = undefined

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View JS PDF Ebooks

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JavaScript Number Properties

JS Number Properties

JavaScript EPSILON

JavaScript MAX_VALUE

JavaScript MIN_VALUE

JavaScript MAX_SAFE_INTEGER

JavaScript MIN_SAFE_INTEGER

JavaScript POSITIVE_INFINITY

JavaScript NEGATIVE_INFINITY

JavaScript NaN - Not a Number

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