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What is function overloading in JavaScript?

Ankitha Reddy
Ankitha Reddy
Updated on 30-Jul-2019 2K+ Views

JavaScript does not support Function Overloading. The following shows function overloading − function funcONE(x,y) { return x*y; } function funcONE(z) { return z; } The above will not show an error, but you won't get desired results. On calling, // prints 5 funcONE(5); // prints 5, not 30 funcONE(5,6); JavaScript does not support function overloading natively. If we will add functions with the same name and different arguments, it considers the last defined function.

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How to debug obfuscated JavaScript?

Ankitha Reddy
Ankitha Reddy
Updated on 30-Jul-2019 672 Views

To debug obfuscated JavaScript code, you need to use a JavaScript formatter or beautifier. Go to the following link to beautify JavaScript, In the left section, add your obfuscated JavaScript code and click Beautify as shown below, On clicking, you can see Beautified JavaScript code in the right section.

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How are variables allocated memory in JavaScript?

Sai Subramanyam
Sai Subramanyam
Updated on 30-Jul-2019 442 Views

JavaScript handling of the variable is different from other programming languages C, C++., Java, etc. Variables in JavaScript can be thought of as named containers. You can place data into these containers and then refer to the data simply by naming the container. Before you use a variable in a JavaScript program, you must declare it. Variables are declared with the var keyword as follows. var rank; var points; Storing a value in a variable is called variable initialization. You can do variable initialization at the time of variable creation or at a ...

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How to call a JavaScript function on submit form?

mkotla
mkotla
Updated on 30-Jul-2019 16K+ Views

The onsubmit event occurs when you try to submit a form. You can put your form validation against this event type. The following example shows how to use onsubmit. Here we are calling a validate() function before submitting a form data to the webserver. If validate() function returns true, the form will be submitted, otherwise it will not submit the data.     The HTML code snippet. …

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What is the difference between local storage vs cookies?

varun
varun
Updated on 30-Jul-2019 1K+ Views

On client and server, the following storages are available: local storage, session storage, and cookies.The Local Storage is designed for storage that spans multiple windows and lasts beyond the current session. In particular, Web applications may wish to store megabytes of user data, such as entire user-authored documents or a user's mailbox, on the client side for performance reasons. Cookies do not handle this case well because they are transmitted with every request.Local Storage is available for every page and remains even when the web browser is closed, but you cannot read it on the server.The stored data has no ...

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What are secured cookies in JavaScript?

Daniol Thomas
Daniol Thomas
Updated on 30-Jul-2019 2K+ Views

A secured cookie is a cookie that works with HTTP/HTTPS, known as a httpOnly cookie. These cookies are only used for HTTP requests, so unethical access though scripting is not possible. Therefore, cross-site scripting can be stopped, which in turn stops attacks.The secure attribute is always activated for secured cookies, so it is transmitted with encrypted connections, without any hassles and security issues. The httpOnly flag does not give cookie access to JavaScript or any non-HTTP methods. This is situated in the secure cookie header.The secure attribute and httpOnly flag ensure that the browser does not allow malicious scripts to ...

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How to add a Favicon to Your WordPress Site?

George John
George John
Updated on 30-Jul-2019 279 Views

A favicon is a little icon visible on the web browser tab, just before the page title. It is generally a logo with the smaller size. You need to include a Site Icon in WordPress to add a favicon to your WordPress site. Login to your WordPress website and from the left menu; click Appearance, and then Customize − After that, you will reach the Theme Customization section. Under that, the first sub-section is Site Identity. From there, you need to go to the Site Icon and upload the icon. The size here is 512x512, from which the ...

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How to use comments to prevent JavaScript Execution?

Ankitha Reddy
Ankitha Reddy
Updated on 30-Jul-2019 337 Views

If you want another code while working in the same code document, then use comments. Comment the previous code and add the alternative code to test it. After the testing completes, uncomment the previous code. In this way, you can test both the codes. While using comments follow the below rules to create valid comments − Any text between a // and the end of a line is treated as a comment and is ignored by JavaScript. Any text between the characters /* and */ is treated as a comment. This may span multiple lines. JavaScript also recognizes the ...

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Using CSS3 in SAP BSP application without using DOCTYPE tag

Amit Sharma
Amit Sharma
Updated on 30-Jul-2019 273 Views

To add a DOCTYPE tag without changing code of your BSP application, you can try using in Web Server, JQuery, or other UI libraries.There are various other libraries that you can search for as a replacement for CSS3 and they have their own advantage. I have used JQuery UI, Wijmo or Modernizer.

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When to use $(document).ready() and when $(window).load() in jQuery?

Alex Onsman
Alex Onsman
Updated on 30-Jul-2019 912 Views

$(window).load()Use $(window).load(), when you want the code inside it to run only once the entire page is ready (not only DOM).  It executes when the page is fully loaded, including frames, objects and imagesNote: The load() method deprecated in jQuery version 1.8. It was completely removed in version 3.0. To see its working, add jQuery version for CDN before 3.0.$(document).ready()Use the  $(document).ready() method when you want the code inside it to run once the page DOM is ready to execute JavaScript code.

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