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The main advantage to JavaScript validation is that it allows for instantaneous feedback for the user. User's are less likely to become annoyed if the form is capable of telling them that their data is invalid right away.
Client-side validation also leads to less traffic. Rather than the server having to receive the entire HTML form POST, just to have it return an error, you can instead significantly cut down on the amount of data being sent to and from the server.
It's important to note that even with JavaScript validation, server-side validation in a higher language must be done. JavaScript is client side, so it's possible to circumvent JavaScript validation with very little effort. If you rely solely on JavaScript validation, you will eventually receive bad (even potentially harmful) POSTS at the server. A web developer that doesn't do server-side checks has a very short career.
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What set of frameworks or libraries would you use for creating an Ajax web application?
There's no debate that JavaScript is the most widely used language client-side on the Web. We are using JavaScript for everything, from form validations to full Ajax applications. Client side java script (CSJS) Frameworks/Libraries for creating an Ajax web applications:ReactJSAngularJS.ReactJSAngularJS
How do you check length of password using javascript?
Use the length property of string in javascript.
Can you get ipaddress by using javascript?
No, use asp
What does a JavaScript certificate document?
A JavaScript certificate document is a document that proves you have all knowledge needed to master web development by using the Javascript and also HTML/DOM.
How do you add a click event to a java button?
we can do this using of javascript. you can use this following code: <input type=button value="button" onClick=onclick_function()> here onclick_function() is a function which is called by javascript on clicking the button. javascript code is as follows: <script language="javascript" type="text/javascript"> // your code for onclick_function() function onclick_function(){ alert("Welcome to javascript"); } </script>
