Regular expression for URL validation in javascript [duplicate]

This question already has answers here: What is the best regular expression to check if a string is a valid URL? (62 answers) Closed 9 years ago.

I am having form which takes url as input..I want to validate it using javascript and regular expression..

it should accept

• www.google.com
• google.com
• http://google.com

Please开发者_JS百科 suggest me a regular expression and total code if possible for validation of url... i tried lotta url given on many forums..but couldn't get appropriate answer.. thanks in advance

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try this,

^(http\://)?[a-zA-Z0-9\-\.]+\.[a-zA-Z]{2,3}(/\S*)?$

this will support

• http://google.com
• http://www.google.com
• www.google.com
• google.com

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You can test it easily with jQuery :

http://docs.jquery.com/Plugins/Validation/Methods/url.

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try dis

url_reg = /(ftp|http|https):\/\/(\w+:{0,1}\w*@)?(\S+)(:[0-9]+)?(\/|\/([\w#!:.?+=&%@!\-\/]))?/;

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This one would be fine, (http|https|)(://|)([\w-]+\.)+[\w-]+(/[\w- ./?%&=]*)?

Try it here. works fine - http://www.regular-expressions.info/javascriptexample.html