How to check a function is defined in JavaScript ?
The job is to identify whether a function is defined or not. The JavaScript typeof operator is used to solve the problem described below: Javascript… Read More »
Category Archives: Web technologies Questions
How to change the element id using jQuery ?
The jQuery methods are used to change the element ID which are described below: jQuery attr() Method: This method set/return attributes and values of the… Read More »
Iterate associative array using foreach loop in PHP
Given two arrays arr1 and arr2 of size n. The task is to iterate both arrays in the foreach loop. Both arrays can combine into… Read More »
How to make dynamic chart in PHP using canvasJS?
CanvasJS is a JavaScript library which is used to make a different type of charts easily for the webpage. For example Bar chart, Pie chart,… Read More »
How to use input readonly attribute in jQuery ?
Use jQuery methods to add the readonly attribute to the form input field. jQuery attr() Method: This method set/return attributes and values of the selected… Read More »
How to move a file into a different folder on the server using PHP?
The move_uploaded_file() function and rename() function is used to move a file into a different folder on the server. In this case, we have a… Read More »
JavaScript | Change the text of a span element
Given an HTML document and the task is to change the text of span element. There are two property used to change the content. HTML… Read More »
Subtract days from Date object in JavaScript
Given a date and the task is to subtract days from date. To subtract days from date in JavaScript, some methods are used which are… Read More »
How to get Month and Date of JavaScript in two digit format ?
Given a date and the task is to get the Month and Date in 2 digit format. Use JavaScript methods to get the Month and… Read More »
JQuery | Get the text of a span element
Given an HTML document and the task is to get the text of a <span> tag using JQuery. Method 1: Using jQuery text() Method: This… Read More »
How to get form data using JavaScript/jQuery?
The serializeArray() method creates an array of objects (name and value) by serializing form values. This method can be used to get the form data.… Read More »
Replace special characters in a string with underscore (_) in JavaScript
JavaScript replace() method is used to replace all special characters from a string with _ (underscore) which is described below: replace() method: This method searches… Read More »
How to replace lowercase letters with an other character in JavaScript ?
Given a string and the task is to replace all lowercase letters from a string with the other characters. The method which are used to… Read More »
How to remove text from a string in JavaScript?
There are three methods to remove the text from a string which are listed below: Method 1: Using replace() method: The replace method can be… Read More »
Gradient borders
Gradient borders are not directly supported by using CSS. There are two methods to create gradient borders which are listed below: Method 1: Using border-image… Read More »
