Object:

Object is a collection of properties.
Objects can contain more than one value.

• Booleans can be objects (if defined with the new keyword)
• Numbers can be objects (if defined with the new keyword)
• Strings can be objects (if defined with the new keyword)
• Dates are always objects
• Maths are always objects
• Regular expressions are always objects
• Arrays are always objects
• Functions are always objects
• Objects are always objects

Syntax: var object_name={name:"value",name:"value",name:"value"};

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Properties:

• Properties are nothing but name/value pairs.
• we can access object properties in two ways.

 Syntax: objname. properytname
                          or
                 objname["properytname"]

Methods:

Objects can also have methods.

Methods are stored in properties as function definition.

EX:

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This:

This is a keyword.

In javascript it is used to refer the object it belongs to.

if we use it in a method then it refers to the owner object.

Date Methods()

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Math:
It is used to perform mathematical operations on numbers.
1.Math.round():

• Math.round(x) returns the value of x rounded to its nearest integer:
•  Ex:Math.round(5.2)
•  output:5

2.Math.pow():

• Math.pow(x, y) returns the value of x to the power of y:
• Ex:math.pow(3,2)
• output:9

3.Math.Sqrt():

• Returns the square root of x.
• Ex:math.sqrt(36)
• output::6

4.Math.abs():

• Returns the absolute value of x.
• Ex:math.abs:(-2.8)
• output:2.8

5.Math.ceil():

• Returns the value of x rounded up to its nearest integer.
• Ex:math.ceil(25.5)
• output:25

6.Math.floor():

• Returns the value of x rounded down to its nearest integer.
• Ex:math.floor(4.2)
• output:4

7.Math.min():

• Returns the lowest number of given numbers.
• Ex:math.min(0,-8,25,71,32,9);
• output:-8

8.Math.max():

• Returns the highest number of given numbers.
• Ex:math.max(10,1,5,8,15)
• output:15

9.Math.random():

• Returns the random number between 0 and 1.
• Ex:math.random();
• output:0.157532

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