JavaScript Native Objects:
- JavaScript has several built-in or native objects.
- These objects are accessible anywhere in your program and will work the same way in any browser running in any operating system.
List of all important
JavaScript Native Objects:
·
JavaScript Number object
·
JavaScript Boolean object
·
JavaScript String object
·
JavaScript Array object
·
JavaScript Date object
·
JavaScript Math object
·
JavaScript RegExp object
JavaScript Math object:
- The math object provides you properties and methods for mathematical constants and functions
- Math is not a constructor. All properties and methods of Math are static and can be called by using Math as an object without creating it.
Syntax:
Math.function name
Example:
var pi_val = Math.PI;
var sine_val = Math.sin(30);
Math Properties:
Property
|
Description
|
E
|
Euler's
constant and the base of natural logarithms, approximately 2.718.
SYNTAX: Math.E
EXAMPLE: var A = Math.E
OUTPUT:A= 2.718281828459045
|
LN2
|
Natural logarithm of 2, approximately
0.693.
SYNTAX: Math.LN2
EXAMPLE: var A = Math.LN2
OUTPUT: A=0.6931471805599453
|
LN10
|
Natural
logarithm of 10, approximately 2.302.
SYNTAX: Math.LN10
EXAMPLE: var A = Math.LN10
OUTPUT: A=2.302585092994046
|
LOG2E
|
Base 2
logarithm of E, approximately 1.442.
SYNTAX: Math.LOG2E
EXAMPLE: var A = Math.LOG2E
OUTPUT: A=1.4426950408889633
|
LOG10E
|
Base 10
logarithm of E, approximately 0.434.
SYNTAX: Math.LOG10E
EXAMPLE: var A= Math.LOG10E
OUTPUT:A=0.4342944819032518
|
PI
|
Ratio of
the circumference of a circle to its diameter, approximately 3.14159.
SYNTAX: Math.PI
EXAMPLE: var A = Math.PI
OUTPUT: A=3.141592653589793
|
SQRT1_2
|
Square root
of 1/2; equivalently, 1 over the square root of 2, approximately 0.707.
SYNTAX: Math.SQRT1_2
EXAMPLE: var A= Math.SQRT1_2
OUTPUT: A=0.7071067811865476
|
SQRT2
|
Square root
of 2, approximately 1.414.
SYNTAX: Math.SQRT2
EXAMPLE: var A = Math.SQRT2
OUTPUT: A=1.4142135623730951
|
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