Q511. What are the advantages of minification?
Normally it is recommended to use minification for heavy traffic and intensive requirements of resources. It reduces file sizes with below benefits, 1. Decreases loading ...
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Q512. What are the differences between obfuscation and Encryption?
Below are the main differences between obfuscation and encryption, | Feature | Obfuscation | Encryption | | ------------------ | -----------------------------------------...
Q513. What are the common tools used for minification?
There are many online/offline tools to minify the javascript files, 1. Google's Closure Compiler 2. UglifyJS2 3. jsmin 4. javascript-minifier.com/ 5. prettydiff.com
Q514. How do you perform form validation using javascript?
JavaScript can be used to perform HTML form validation. For example, if the form field is empty, the function needs to notify, and return false, to prevent the form being...
Q515. How do you perform form validation without javascript?
You can perform HTML form validation automatically without using javascript. The validation enabled by applying the `required` attribute to prevent form submission when t...
Q516. What are the DOM methods available for constraint validation?
The below DOM methods are available for constraint validation on an invalid input, 1. `checkValidity()`: It returns true if an input element contains valid data. 2. `setC...
Q517. What are the available constraint validation DOM properties?
Below are the list of some of the constraint validation DOM properties available, 1. `validity`: It provides a list of boolean properties related to the validity of an in...
Q518. What are the validity properties?
The validity property of an input element provides a set of properties related to the validity of data. 1. `customError`: It returns true, if a custom validity message is...
Q519. Give an example usage of the rangeOverflow property
If an element's value is greater than its max attribute then the `rangeOverflow` property is true. For example, the below form submission throws an error if the value is ...
Q520. Are enums available in javascript?
No, javascript does not natively support enums. But there are different kinds of solutions to simulate them even though they may not provide exact equivalents. For exampl...