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ECMA is the full form of ES and it is the scripting language which has been developed by the ECMA international. One can easily utilize it for doing scripting from the client side and the first edition was published in the year 1997 and then in 2015, the Second Edition was published.
Differences between ES5 and ES6
The specification of ES6 is not new but many developers are not acquainted with this version because many web browsers are not being able to support it. Now it has been many years after the release of ES6 and which is why the modern web browsers are going to make you utilize it very fluently without much hindrance.
If the web browser that you are using is not of a recent version, then you can use transpilers which can easily transform the ES6 sources to the ES5 sources whenever you are building any application. Since this is the updated version, so let’s see the new features which have been introduced in ES6 JS.
Array: Array is the most helpful feature which has been introduced in ES 6 JS because this valuable function will easily help you to include impressive language features.
ForEach: Making an array with this function will allow you to easily execute each element present in it and then pass this array element as the argument.
Map: It will be creating the new array that will contain similar counts of elements, but the output element will be created by the function which is already provided. So it will be converting every element of the array into something else.
Variables and constants: Whenever you are defining any immutable number in the code, then it will stay there constantly and whenever you will try to assign something new as a replacement of that constant then it will pop an error. It is very valuable whenever you are using any known number which won’t be changing with time and the entire application will rely on it. In this new version, you will be getting the let function that will allow you to define the variables in a new way. So whenever you are defining the variable by using the let function, it will be scoped to that particular block and it will not be declared globally.
Classes: With ES6 classes it will be encouraging the pattern of object-oriented prototype and it will bring the support for constructors, inheritance, static methods and many more.
Is it safe?
In the language of coders when they ask whether it is safe or not they are asking about the compatibility. ES 6 is completely safe and it is very compatible with all the web browsers. It is true that you might come across some features which will be partially supported or unsupported but there are high chances that you will never get a situation where you will have to use that function.
How to start with E S6?
You can use Babel for getting started with ES6. It will easily convert the code of es6 to es5 for people who are not well acquainted with this version. This sixth edition is like a boon to the scripting language field.