How to wait for a promise to finish before returning the variable of a function?
Here a promise is a returned object from an asynchronous function, to that callback methods can be added based on the previous function’s result. It… Read More »
Category Archives: JavaScript
How to compute union of JavaScript arrays ?
Given two arrays containing array elements and the task is to compute the union of both arrays with the help of JavaScript. There are two… Read More »
What does javascript:void(0) mean?
You might have occasionally came across “javascript:void(0)” in an HTML Document. It is often used when inserting an expression in a web page might produce… Read More »
How to format a phone number in Human-Readable using JavaScript ?
Give a phone number and the task is to format a phone number in such a way that it becomes easy to understand for humans.… Read More »
How to convert a pixel value to a number value using JavaScript ?
The task is to convert the string value containing ‘px’ to the Integer Value with the help of JavaScript. Here, Few approaches are discussed. Approach… Read More »
How to validate an input is alphanumeric or not using JavaScript ?
Given an input element and the task is to check whether the input element is alphanumeric or not. There are two methods to solve this… Read More »
How to remove CSS style of <style> tag using JavaScript/jQuery ?
Given an HTML document containing inline and internal CSS and the task is to remove the style of <style> tag. The internal or embedded CSS… Read More »
How to find the index of all occurrence of elements in an array using JavaScript ?
Given an array containing array elements and the task is to find all occurrence of an element from the array. We are going to do… Read More »
How to remove all inline styles using JavaScript/jQuery ?
Given an HTML document containing inline and internal CSS and the task is to remove the inline CSS style from a particular element with the… Read More »
How to read CSS rule values with JavaScript?
CSS rules can be read and manipulated using DOM (Document Object Model). To read all the Embedded CSS rules using JavaScript we can use the… Read More »
How to copy the content of a div into another div using jQuery ?
Given an HTML document containing some div element and the task is to copy a div content into another div as its child using jQuery.… Read More »
How to append data to <div> element using JavaScript ?
To append the data to <div> element we have to use DOM(Document Object Model) manipulation techniques. The approach is to create a empty <div> with… Read More »
How to set a default parameter value for a JavaScript function ?
Let us first take a look at a problem and then we’ll take a look at how default values for function parameters address that problem.… Read More »
How to use goto in Javascript ?
There is no goto keyword in javascript. The reason being it provides a way to branch in an arbitrary and unstructured manner. This might make… Read More »
How to create a function from a string in JavaScript ?
The task is to create a function from the string given in the format of function. Here are few techniques discussed with the help of… Read More »
