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I wonder how can I write a Java Script code that prompts for a URL. If a valid URL is entered, it loads the URL in a new window, otherwise it displays the message stating that the URL was invalid.

I understand that I have to come up with validation rules for the URL, but I can not develop the code. If anyone try to help me I will appreciate it.Greta!

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JavaScript

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Copy linkTweet thisAlerts:
@bathurst_guyApr 14.2006 — var url = prompt("Please enter a url");

if(url = validation_rule_that_you_create){

window.open(url);

}else{

alert("The URL you entered is invalid");

}
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