I think CMS is still very popular...like WordPress Magento. But I am not sure what you "Browsers had different version of Javascript", I have not seen any different versions for vanilla javascript for different browser. All I know is javascript is actually parsed from the browser it self, it's not dependable on any other js libraries like jQuery. Yes some methods are not supported by the IE browser like IE8, IE9, IE10, (we have also fix for that), because those methods are not in build functionality from IE browser. From IE Edge I think javascript support is seemless But Chrome, Mozilla, Opera safari behave alike.
A technical committee at EMCA known as TC39 is the organization behind the standardization of the ECMAScript (JavaScript) specification. They released new specs of ECMAScript 'vanilla javascript' almost every year and its up to the browser devs to add those. Today most modern browsers are using webkit apart of Safari from Apple.
I think CMS is still very popular...like WordPress Magento. But I am not sure what you "Browsers had different version of Javascript", I have not seen any different versions for vanilla javascript for different browser. All I know is javascript is actually parsed from the browser it self, it's not dependable on any other js libraries like jQuery. Yes some methods are not supported by the IE browser like IE8, IE9, IE10, (we have also fix for that), because those methods are not in build functionality from IE browser. From IE Edge I think javascript support is seemless But Chrome, Mozilla, Opera safari behave alike.
A technical committee at EMCA known as TC39 is the organization behind the standardization of the ECMAScript (JavaScript) specification. They released new specs of ECMAScript 'vanilla javascript' almost every year and its up to the browser devs to add those. Today most modern browsers are using webkit apart of Safari from Apple.
Thanks for the info and sharing the knowledge.