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ES6 Support #24

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opened 2024-09-04 13:22:27 +00:00 by TopchetoEU · 1 comment
TopchetoEU commented 2024-09-04 13:22:27 +00:00 (Migrated from github.com)
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Currently, the engine has good ES5 support. However, for any real-world application having ES6 support is imperative.

The following features ought to be implemented:

  • Arrow functions (#26)
  • Default arguments (#26)
  • Spread arguments (#26)
  • ES6-style variable declarations (let and const) (#26)
  • Variable, parameter and assignment deconstructions (#28)
  • Object literal shorthands, methods and computed keys (#28)
  • Class definitions (#29 WIP)
  • Array deconstructors
  • Spread syntax in objects
  • Spread syntax in arrays
  • Spread syntax in calls (and dynamic argument count in calls)
  • Nullish coalescing operator and assignment (??)
  • Optional indexing (.?)
  • &&= and ||= operators (ES5 features that are missing)
  • Generator functions
  • new.target
  • Exponent operator
  • For-of loop
  • Optional parsing mode for ES module files

The following will NOT be implemented:

  • eval() - brings multiple complexities into the project, mostly with the resolution of variables in the runtime, for the benefit of a feature which is unsafe and has the better alternative of the Function constructor
  • Non-strict context (aka JS code will be compiled and run "use strict" implied)
Currently, the engine has good ES5 support. However, for any real-world application having ES6 support is imperative. The following features ought to be implemented: - [x] Arrow functions (#26) - [x] Default arguments (#26) - [x] Spread arguments (#26) - [x] ES6-style variable declarations (let and const) (#26) - [x] Variable, parameter and assignment deconstructions (#28) - [x] Object literal shorthands, methods and computed keys (#28) - [ ] Class definitions (#29 WIP) - [ ] Array deconstructors - [ ] Spread syntax in objects - [ ] Spread syntax in arrays - [ ] Spread syntax in calls (and dynamic argument count in calls) - [ ] Nullish coalescing operator and assignment (??) - [ ] Optional indexing (.?) - [ ] &&= and ||= operators (ES5 features that are missing) - [ ] Generator functions - [ ] new.target - [ ] Exponent operator - [ ] For-of loop - [ ] Optional parsing mode for ES module files The following will NOT be implemented: - eval() - brings multiple complexities into the project, mostly with the resolution of variables in the runtime, for the benefit of a feature which is unsafe and has the better alternative of the Function constructor - Non-strict context (aka JS code will be compiled and run "use strict" implied)
topchetoeu commented 2025-01-09 17:56:27 +00:00
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This is cancelled, use babel instead

This is cancelled, use babel instead
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Reference: topchetoeu/j2s#24
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