Operators in Javascript | JavaScript Tutorial

Опубликовано: 01 Август 2021
на канале: CodeLinkUp

Now a Days JavaScript become more useful front-end and/or back-end developers.

this JavaScript tutorial for beginners to learn JavaScript from scratch.

If you want to become a front-end developer, you have to learn JavaScript. It is the programming language that every front-end developer must know.

You can also use JavaScript on the back-end using Node. Node is a run-time environment for executing JavaScript code outside of a browser. With Node and Express (a popular JavaScript framework), you can build back-end of web and mobile applications.
JavaScript supports the following types of operators.
Arithmetic Operators
Comparison Operators
Logical (or Relational) Operators
Assignment Operators
Conditional (or ternary) Operators
String Operators
Type Operators
Bitwise Operators

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The main difference between let and var is that scope of a variable defined with let is limited to the block in which it is declared while variable declared with var has the global scope. So we can say that var is rather a keyword which defines a variable globally regardless of block scope.

The scope of let not only limited to the block in which it is defined but variable with let also do not get added with global window object even if it get declared outside of any block. But we can access variable with var from window object if it is defined globally.

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