4 notes.txt

Contents:

1.Arrays
2.Array types & Examples
3.String
4.String types & Examples

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what is an Array?

===>array is a single variable that is used to store elements of different data types.

===>Similar to collection of data types.

===>Similar to Sequence of Memory Location.

===>using square bracket [].

===>Two properties an Array
    1.index 
    2.length

1.index:
*index value know access the array.
*used to print the specific elements. 
***index value started for [0].***
***Syntax:arrayname[index value]
*Example:

var myfamily = ["amma", "appa", "sister","brother"];
console.log(myfamily); // [ 'amma', 'appa', 'sister', 'brother' ]
console.log(myfamily[0]); //amma
console.log(myfamily[1]); //appa
console.log(myfamily[2]); //sister
console.log(myfamily[3]); //brother

2.length:    
*To find the length of array.
*Syntax: arrayname.length
***To find the last elements***
Syntax: arrayname.length-1

===>Changing an Array Element

const name = ["ahbarp", "ahteeg", "levagnaht"];
// name[0] = "prabha";
name[1] = "geetha";
name[2] = "thangavel" 
console.log(name[0] ); //['prabha']

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what is String?

===>The String is represent and manipulate a sequence of characters.

===>“ ”  /  ‘ ‘  ===> using single or double quotes.

===>Example:
      var a = "Prabha";
      var b = "ERODE";
      console.log(b); //"ERODE"  

===>Kindly see the console for string method examples.

===>Formula:
          S+N=S
          N+S=N
          S+S+N=S
          N+N+S=N
===>This string Formula can be used one or more entries based on number.  

===>Kindly see the console for Results.

===>To bring a string to a single line, you need to concatenation it.

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