January 2020
Intermediate to advanced
470 pages
11h 13m
English
Content preview from Mastering JavaScript Functional Programming - Second Edition
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Using transpilers
In order to get out of this availability and compatibility problem, there are a couple of transpilers that you can use. Transpilers take your original ES10 code, which might use the most modern JavaScript features, and transforms it into equivalent JS5 code. It's a source-to-source transformation, instead of a source-to-object code that would be used in compilation. You can code using advanced ES10 features, but the user's browsers will receive JS5 code. A transpiler will also let you keep up with upcoming versions of the language, despite the time needed by browsers to adopt new standards across desktop and mobile devices.
If you wonder where the word transpiler came from, it is a portmanteau of translate and compiler
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