Part of Crunchify JavaScript Tutorial Series...

1. How to Check if String Contains another Substring?

String 1:
String 2:

Click to check if String 1 contains String 2

2. How to Remove Array Element by Value?

Array = ["eBay", "Google", "Paypal", "Yahoo" ];
Let's remove element "Google"

Remove element

3. How to Move Listbox Values to Left/Right?

eBay Google Paypal Yahoo

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4. How to Remove Duplicates Elements from Array?

     var companies = ["eBay", "Google", "Paypal", "Yahoo", "Google"];

Note 'Google' is duplicate in companies array. Click to remove duplicate elements from companies array:

Remove Duplicate

5. How to Remove Array Element by Index?

Array = ["eBay", "Google", "Paypal", "Yahoo" ];
Let's remove 2nd element, i.e. "Paypal"

Remove element