Read this tutorial and learn several methods used to check if a string contains another substring in JavaScript or not. Read information and see examples.
Checking the data type of the value can be misleading. Read this tutorial and learn which operator is used to check if a value is an object in JavaScript.
Read this JavaScript tutorial and learn several fast and useful methods that are invoked for checking whether the variable is of function type or not.
Read this tutorial and learn valuable information about the multiple methods that are used for checking if the element contains a class in JavaScript.
Very often we need to check whether the element is in an array in JavaScript or not. In this snippet, we are going to learn some methods to do that.
Read this tutorial and learn the right method of detecting whether the user pressed the Enter key. The given method provides a cross browser compatibility.
Read this tutorial and learn the methods of checking whether the specified object has the specified property in JavaScript. Find the fastest one for you.
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.
In this tutorial, you will read and learn information about the two methods of checking whether a function exists in JavaScript or it has not been defined.
Read this tutorial and find methods of checking whether a JavaScript object is empty or not. Choose the best one for you and get the code immediately.
