| SN | JavaScript | TypeScript |
|---|---|---|
| 1 | It was developed by Netscape in 1995. | It was developed by Anders Hejlsberg in 2012. |
| 2 | JavaScript source file is in ".js" extension. | TypeScript source file is in ".ts" extension. |
| 3 | JavaScript doesn't support ES6. | TypeScript supports ES6. |
| 4 | It doesn't support strongly typed or static typing. | It supports strongly typed or static typing feature. |
| 5 | It is just a scripting language. | It supports object-oriented programming concept like classes, interfaces, inheritance, generics, etc. |
| 6 | JavaScript has no optional parameter feature. | TypeScript has optional parameter feature. |
| 7 | It is interpreted language that's why it highlighted the errors at runtime. | It compiles the code and highlighted errors during the development time. |
| 8 | JavaScript doesn't support modules. | TypeScript gives support for modules. |
| 9 | In this, number, string are the objects. | In this, number, string are the interface. |
| 10 | JavaScript doesn't support generics. | TypeScript supports generics. |
