JavaScript Array Methods Part4 - JavaScript Tutorial 101

Notes for You:: JavaScript Array Methods Part4 - JavaScript Tutorial 101

Array concat() and join() Methods.

concat() Method:
- returns a new array by concatenating / appending given element(s) to the element(s) of the given array.

Syntax:
concat(... args): Array
where:
... args: indicates element(s) to be concatenated /appended

Note:
- concat method can be is used to combine two arrays.
- concat method does not affect original arrays.

join() Method:
- returns a new array by joining list of elements with the given delimiter/separator.

Syntax:
join(delimiter :* ):Array
where:
delimiter: indicates delimiter/separator to be used while joining.

Note:
- join method does not affect original array.

Example Code:
var studNames = ["Ram","Ravi","Raju","Raghu","Gopal"];

d.w( studNames ); // Ram, Ravi, Raju, Raghu, Gopal
d.w( "<br/>" );
d.w( "<br/>" );
d.w( "<br/>" );

//d.w( "<br/>" );

var newStuds = ["Ramesh","Suresh"];

d.w( "<br/>" );
d.w( "<br/>" );

d.w( studNames ); // Ram, Ravi, Raju, Raghu, Gopal
d.w( "<br/>" );
d.w( newStuds ); // Ramesh, Suresh
d.w( "<br/>" );
d.w( "<br/>" );

d.w( studNames ); // Ram, Ravi, Raju, Raghu, Gopal
d.w( "<br/>" );
d.w( "<br/>" );
d.w( "<br/>" );
d.w( studNames ); // Ram, Ravi, Raju, Raghu, Gopal
d.w( "<br/>" );

Note:
- replace < with less-than symbol.
- replace > with greater-than symbol.

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Follow the link for next video:
JavaScript Tutorial 102 - indexOf() Method | lastIndexOf() Method | JavaScript Array Methods

Follow the link for previous video:
JavaScript Tutorial 100 - splice() Method | slice() Method | JavaScript Array Methods

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