Showing posts with label JavaScript. Show all posts
Showing posts with label JavaScript. Show all posts
Sunday, 29 March 2020

How do I copy to the clipboard in JavaScript?

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Step 1: Add Following javascript function in Web page. function selectAllData(id) { var obj = document.getElementById(id); ...
Wednesday, 14 February 2018

What is Object.assign()? and how to use Object.assign()?

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Question: What is Object.assign()? The Object.assign() is used to copy the values of all properties from one or more source objects to ...
Tuesday, 13 February 2018

JSON.stringify - What is JSON.stringify? and how to use?

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Question: What is JSON.stringify()? The JSON.stringify() method converts a JavaScript value to a JSON string. It can also convert a Ob...
Thursday, 14 July 2016

Callback, Trigger and Event handler in javaScript

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Callback is a function that is passed to another function as parameter and callback function is called inside another function. Example ...
Friday, 15 April 2016

How to apply css in iframe with javaScript?

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See Following Working Example: Suppose you have Following Iframe Now you just need to add a script code which will add the css file ...
Sunday, 17 January 2016

How to load disqus when scroll to the bottom of the page?

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Question: What is Disqus? It is comment hosting service for web sites and online communities. It provide Services so that you can add c...
Thursday, 13 August 2015

How do you get a timestamp in JavaScript?

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Question: What is timestamp? A  timestamp  is the current time of an event that is recorded by a computer. In JavaScript, it gives loc...
Wednesday, 12 August 2015

How do closures work in Javascript

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Question: What is closures? Whenever you defined a the function within another function, the inner function has access to variables in...
Sunday, 7 June 2015

Load multiple javascript files asynchronously

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In Every website, We have to include the JavaScript. We need to include multiple JavaScript file in single web page. It's always...
Thursday, 2 April 2015

Javascript Interview Questions and Answers for Experienced 2

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Question: How to set a default parameter value for a JavaScript function? /** Here email is parameter in which we have set the defaul...
Sunday, 29 March 2015

Difference between encodeuri and encodeuricomponent in javascript?

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encodeURI: This javascript function is used to encode a URI (Uniform Resource Identifier). This function encode special characters exc...
Tuesday, 24 March 2015

What is difference between event.preventDefault() and return false in Javascript?

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e.preventDefault() will prevent the default event from occuring. Means If this method is called, the default action of the event will...

What is the difference between call and apply in javascript?

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In Javascript, call() and apply() are predefined methods . Both methods can be used to invoke a function  & must have the owner ob...
Monday, 23 March 2015

How to Include a JavaScript file in another JavaScript file?

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Including a javascript file in another javascript file is common in web development. Because many times we include the javascript file...
Saturday, 21 March 2015

How can I get query string values in JavaScript and jQuery?

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I want to get the values from the Query String (means from URL), values are dynamic but query string variable is constant . Suppose, ...