Which browsers support ECMAScript 5

JavaScript was originally developed by Brendan Eich of Netscape. Netscape delivered JavaScript to Ecma International,  a non-profit standards organization for information and communication systems, for standardization and the work on the specification, ECMA-262, began in November 1996. ECMAScript is the name of the scripting language standardized in ECMA-262. 

Brendan Eich, the creator of JavaScript, commented that "ECMAScript was always an unwanted trade name that sounds like a skin disease."

All the newer versions of popular browsers support ECMAScript 5 (the fifth edition of the standard) or ES5. More specifically speaking it is supported fully by:

  • IE 10 and above
  • Firefox 4 and above
  • Chrome 19 and above
  • Safari 6 and above
  • Opera 12.10 and above 

Also see: What is the version of your browser?

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