Javascript is a dynamic programming language. Now I’m not going to give you technical information. There are already a lot of resources on the Internet. I’m more interested in what can be done with this. Codes written in Javascript are executed by the browser. So no compiler is needed. You can interact with the user via Javascript. An example is a program that draws a circle when the user clicks a button. A lot of things like this can be done with javascript. It is very important for mathematical programming, in fact, you will see it when writing programs with Javascript. If you have done some research on the internet, you will see how important Javascript is. For example, Node.js, Angular.js, Particles.js, Vue.js, React.js, Wallaby.js, Backbone.js, Meteor.js, Require.js, and many other projects are available. I hope I will give short lectures with Javascript in my future articles. Then I’m thinking of doing a lot of examples.