Latest questions in Java-Script

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How to get the host url using javascript from the current page?

Hello @kartik, Use: var host = window.location.hostname; or possibly var host ...READ MORE

Oct 9, 2020 in Java-Script by Niroj
 • 82,800 points • 1,555 views
0 votes
1 answer

How to get the anchor from the URL using jQuery?

Hello @kartik, For current window, you can use this: var ...READ MORE

Oct 9, 2020 in Java-Script by Niroj
 • 82,800 points • 6,954 views
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1 answer

How to get the URL without any parameters in JavaScript?

Hello @kartik, This is possible, but you'll have ...READ MORE

Oct 9, 2020 in Java-Script by Niroj
 • 82,800 points • 8,215 views
0 votes
1 answer

How to disable HTML button using JavaScript?

Hello @kartik, To disable document.getElementById("btnPlaceOrder").disabled = true; To enable document.getElementById("btnPlaceOrder").disabled ...READ MORE

Oct 9, 2020 in Java-Script by Niroj
 • 82,800 points • 794 views
0 votes
1 answer

How to to get the key of a key/value javascript object?

Hello @kartik, You would iterate inside the object ...READ MORE

Oct 9, 2020 in Java-Script by Niroj
 • 82,800 points • 1,124 views
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1 answer

How can I submit a form using JavaScript?

Hello @kartik, Set the name attribute of your form to "theForm" and ...READ MORE

Oct 9, 2020 in Java-Script by Niroj
 • 82,800 points • 993 views
0 votes
1 answer

Error:Uncaught SyntaxError: Unexpected token

Hello @kartik, Using the jQuery command getJSON and ...READ MORE

Oct 9, 2020 in Java-Script by Niroj
 • 82,800 points • 4,019 views
0 votes
1 answer

How to detect when a user leaves a web page using javascript?

Hello @kartik, Try the onbeforeunload event: It is fired just ...READ MORE

Oct 9, 2020 in Java-Script by Niroj
 • 82,800 points • 5,665 views
0 votes
1 answer

How do I link a JavaScript file to a HTML file?

Hello @kartik, This is how you link a ...READ MORE

Oct 8, 2020 in Java-Script by Niroj
 • 82,800 points • 938 views
0 votes
1 answer

How to get the value of an input field using ReactJS?

Hello @kartik, Managed to get the input field ...READ MORE

Oct 8, 2020 in Java-Script by Niroj
 • 82,800 points • 14,542 views
0 votes
1 answer

How is the 'use strict' statement interpreted in Node.js?

Hello @kartik, "use strict"; Basically it enables the strict ...READ MORE

Oct 8, 2020 in Java-Script by Niroj
 • 82,800 points • 3,598 views
0 votes
1 answer

How can I determine the type of an HTML element in JavaScript?

Hello @kartik, nodeName is the attribute you are looking ...READ MORE

Oct 8, 2020 in Java-Script by Niroj
 • 82,800 points • 2,763 views
0 votes
1 answer

How can I set multiple CSS styles in JavaScript?

Hello @kartik, Using Object.assign: Object.assign(yourelement.style,{fontsize:"12px",left:"200px",top:"100px"}); This also gives you ability to ...READ MORE

Oct 8, 2020 in Java-Script by Niroj
 • 82,800 points • 3,959 views
0 votes
1 answer

How do I break a string across more than one line of code in JavaScript?

Hello @kartik, In your example, you can break ...READ MORE

Oct 8, 2020 in Java-Script by Niroj
 • 82,800 points • 869 views
0 votes
1 answer

How can I check if a checkbox is checked?

Hello @kartik, Try this: function validate() { var ...READ MORE

Oct 8, 2020 in Java-Script by Niroj
 • 82,800 points • 1,264 views
0 votes
1 answer

How to get params from a URL in Angular?

Hello @kartik, To use params simply append them ...READ MORE

Oct 8, 2020 in Java-Script by Niroj
 • 82,800 points • 11,289 views
0 votes
1 answer

How to test if a string is JSON or not?

Hello @kartik, Use JSON.parse function isJson(str) { ...READ MORE

Oct 8, 2020 in Java-Script by anonymous
 • 82,800 points • 4,427 views
0 votes
1 answer

How to convert HTML string into DOM elements?

Hello @kartik, You can use a DOMParser, like so: var ...READ MORE

Oct 8, 2020 in Java-Script by Niroj
 • 82,800 points • 8,288 views
0 votes
1 answer

How to add `style=display:“block”` to an element using jQuery?

Hello @kartik, Try this: $("#YourElementID").css("display","block"); Or $("#YourElementID").css({ display: "block" }); Hope it ...READ MORE

Oct 7, 2020 in Java-Script by Niroj
 • 82,800 points • 7,181 views
0 votes
1 answer

How to find the operating system version using JavaScript?

Hello @kartik, Try this: var OSName = "Unknown"; if (window.navigator.userAgent.indexOf("Windows ...READ MORE

Oct 7, 2020 in Java-Script by Niroj
 • 82,800 points • 6,405 views
0 votes
1 answer

How to set Value of Input Using Javascript Function?

Hello @kartik, Try for YUI Dom.get("gadget_url").set("value",""); with normal Javascript document.getElementById('gadget_url').value = ''; with ...READ MORE

Oct 7, 2020 in Java-Script by Niroj
 • 82,800 points • 4,419 views
0 votes
1 answer

How can I only detect click event on pseudo-element?

There is a solution. Have you considered ...READ MORE

Dec 15, 2021 in Java-Script by Wave
edited Mar 5 • 26,158 views
0 votes
1 answer

How do I use format() on a moment.js duration?

Hello @kartik, Use this: // set up let start = ...READ MORE

Oct 7, 2020 in Java-Script by Niroj
 • 82,800 points • 2,389 views
0 votes
1 answer

How to remove all listeners in an element?

Hello @kartik, I think that the fastest way ...READ MORE

Oct 7, 2020 in Java-Script by Niroj
 • 82,800 points • 6,651 views
0 votes
1 answer

How could I call that function from the command line in nodejs?

Hello @kartik, In your db.js, export the init function. There are ...READ MORE

Oct 7, 2020 in Java-Script by Niroj
 • 82,800 points • 10,423 views
0 votes
1 answer

How to clear all <div>s’ contents inside a parent <div>?

Hello @kartik, jQuery's empty() function does just that: $('#masterdiv').empty(); clears the master div. $('#masterdiv ...READ MORE

Oct 7, 2020 in Java-Script by Niroj
 • 82,800 points • 1,168 views
0 votes
1 answer

How to call onChange event after pressing Enter key?

Hello @kartik, You can use onKeyPress directly on ...READ MORE

Oct 7, 2020 in Java-Script by anonymous
 • 82,800 points • 12,012 views
0 votes
1 answer

How to get function parameter names/values dynamically?

Hello @kartik, The following function will return an ...READ MORE

Sep 23, 2020 in Java-Script by Niroj
 • 82,800 points • 2,687 views
0 votes
1 answer

How to get the size of a JavaScript object?

Hello @kartik, Use this code: function roughSizeOfObject( object ) ...READ MORE

Sep 23, 2020 in Java-Script by Niroj
 • 82,800 points • 4,804 views
0 votes
1 answer

How to reject in async/await syntax?

Hello @kartik,  throw an Error wrapping the value, which results in ...READ MORE

Sep 23, 2020 in Java-Script by Niroj
 • 82,800 points • 2,156 views
0 votes
1 answer

How to stop event propagation with inline onclick attribute?

Hello @kartik, Use event.stopPropagation(). <span onclick="event.stopPropagation(); alert('you clicked inside the ...READ MORE

Sep 23, 2020 in Java-Script by Niroj
 • 82,800 points • 3,195 views
0 votes
1 answer

How to execute a function when page has fully loaded?

Hello @kartik, That's called load. It came waaaaay before ...READ MORE

Sep 23, 2020 in Java-Script by Niroj
 • 82,800 points • 1,516 views
0 votes
1 answer

How to Get local IP address in node.js?

Hello @kartik, os.networkInterfaces(), — an object, that maps ...READ MORE

Sep 23, 2020 in Java-Script by Niroj
 • 82,800 points • 7,548 views
0 votes
1 answer

How do I disable right click on my web page?

Hello @kartik, You can do that with JavaScript ...READ MORE

Sep 23, 2020 in Java-Script by Niroj
 • 82,800 points • 3,308 views
0 votes
1 answer

How to pass arguments to addEventListener listener function?

Try this: const someInput = document.querySelector('button'); someInput.addEventListener('click', myFunc, false); someInput.myParam ...READ MORE

Sep 23, 2020 in Java-Script by Niroj
 • 82,800 points • 11,615 views
0 votes
1 answer

How do I measure the execution time of JavaScript code with callbacks?

Hello @kartik, Use the Node.js console.time() and console.timeEnd(): var i; console.time("dbsave"); for(i = 1; ...READ MORE

Sep 23, 2020 in Java-Script by Niroj
 • 82,800 points • 1,044 views
+1 vote
1 answer

How to download a file from NodeJS Server using Express?

Hello @kartik, Express has a helper for this as: app.get('/download', function(req, ...READ MORE

Sep 23, 2020 in Java-Script by Niroj
 • 82,800 points • 3,432 views
0 votes
1 answer

How to remove all child elements of a DOM node in JavaScript?

Hello @kartik, Use modern Javascript, with remove! const parent = ...READ MORE

Sep 21, 2020 in Java-Script by Niroj
 • 82,800 points • 2,419 views
0 votes
1 answer

How do I declare a namespace in JavaScript?

Hello @kartik, Try this: var yourNamespace = { ...READ MORE

Sep 21, 2020 in Java-Script by Niroj
 • 82,800 points • 757 views
0 votes
1 answer

How to delete a cookie using javscript?

Hello @kartik, Try this: function delete_cookie( name, path, domain ...READ MORE

Sep 21, 2020 in Java-Script by Niroj
 • 82,800 points • 684 views
0 votes
1 answer

How to copy static files to build directory with Webpack?

Hello @kartik, Requiring assets using the file-loader module ...READ MORE

Sep 21, 2020 in Java-Script by Niroj
 • 82,800 points • 7,516 views
0 votes
0 answers

How to create a <style> tag with Javascript?

I'm looking for a way to insert ...READ MORE

Sep 21, 2020 in Java-Script by kartik
 • 37,520 points • 989 views
0 votes
1 answer

How to get the focused element with jQuery?

Hello @kartik, // Get the focused element: var $focused ...READ MORE

Sep 21, 2020 in Java-Script by Niroj
 • 82,800 points • 5,752 views
0 votes
1 answer

How do I add a delay in a JavaScript loop?

Hello @kartik, The setTimeout() function is non-blocking and will return ...READ MORE

Sep 21, 2020 in Java-Script by Niroj
 • 82,800 points • 8,001 views
0 votes
1 answer

How can I insert a line break into a <Text> component in React Native?

Hello @kartik, This should do it: <Text> Hi~{"\n"} this is a ...READ MORE

Sep 21, 2020 in Java-Script by Niroj
 • 82,800 points • 16,022 views
0 votes
2 answers

How to change website favicon dynamically?

There is a way of doing it ...READ MORE

Sep 28, 2020 in Java-Script by anju
 • 160 points • 5,406 views
0 votes
1 answer

How to retrieve GET parameters from javascript?

Hello @kartik, This code gives you GET without ...READ MORE

Sep 21, 2020 in Java-Script by Niroj
 • 82,800 points • 684 views
0 votes
1 answer

How to Obtain form input fields using jQuery?

Hello @kartik, Try this: $('#myForm').submit(function() { ...READ MORE

Sep 18, 2020 in Java-Script by Niroj
 • 82,800 points • 5,172 views
0 votes
1 answer

How to reset <input type = “file”> using javascript?

Hello @kartik, You need to wrap <input type = ...READ MORE

Sep 18, 2020 in Java-Script by Niroj
 • 82,800 points • 6,914 views
0 votes
1 answer

How to create HTML elements using jQuery?

Hello @kartik,  if you're doing $('<div>'), jQuery will also ...READ MORE

Sep 18, 2020 in Java-Script by Niroj
 • 82,800 points • 1,456 views
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