• Tell me about a Callback Function?

    We can read JavaScript line by line. It can also result in a successive code line being performed before an earlier code line. A callback function prevents this situation since it is not called until the preceding code line has completely performed.

  • What do you know about CSS float?

    Float is used when you required to keep your web page element pushed to the left or right and make all other elements cover around it.

  • What is the main difference between Prototypal and Class inheritance?

    In JavaScript, inheritance is different from a lot of other development languages. In JavaScript the object system based on a prototype, not the class. Objects are only a collection of value pairs and name.

  • What is ReactJS?

    ReactJS is an open-source front-end JavaScript library that is primarily used for creating user interfaces specifically for one-page applications. It is also used for managing the view layer for mobile and web apps.