JavaScript was invented by Brendan Eich in 1995, and became an ECMA standard in 1997.
ECMA-262 is the official name of the standard. ECMAScript is the official name of the language.
| Year | Name | Description |
|---|---|---|
| 1997 | ECMAScript 1 | First Edition |
| 1999 | ECMAScript 3 | Added Regular Expressions. Added try/catch. |
| 2009 | ECMAScript 5 | Added "strict mode". Added JSON support. |
| 2015 | ECMAScript 6 | Added classes and modules |
| 2016 | ECMAScript 7 | Added Array.prototype.includes. |
ECMAScript 2/4 versions also has some changes. but there is no proper information regarding this.
ECMAScript 6 is also called ECMAScript 2015.
ECMAScript 7 is also called ECMAScript 2016.
- ECMAScript 3 is fully supported in all browsers.
- ECMAScript 5 is fully supported in all modern browsers.
- ECMAScript 6 is partially supported in all modern browsers.
- ECMAScript 7 is poorly supported in all browsers.
- JavaScript was developed for Netscape.
- ECMAScript was developed by Ecma International after the organization adopted JavaScript.
- JScript was developed by Microsoft as a compatible JavaScript language for Internet Explorer in 1996.