The way of changing variables depends on the type of scope. See how to change for each type of scope: not inherit, inherit and isolated.
Read the tutorial and find out one of the methods of checking whether the element is visible after scrolling with jQuery. Also, find about utility function.
This tutorial provides the method of checking whether the type of the variable is undefined. Read about the differences between undefined and “undefined”.
Read this tutorial and learn useful information about declaring a constant by using the const keyword which creates a read-only reference to the value.
Read this tutorial and learn about the safe method of calling a function when you have its name as a string. Also, read about why you should not use eval().
The tutorial provides information of getting the current date, time and both by running a simple piece of code. Also, get the full explanation of the code.
Read the tutorial and learn the methods of getting the value of the selected option in a select box using jQuery. Read about the text() and val() methods.
Working with variables is an essential part of a developer’s life. In this snippet, we will demonstrate to you how to pass variables by reference with PHP.