Does “JS TS” seem to have more advantages than “OpenFL” in developing the “HTML5” project?
No, using Haxe is definitely more advantageous because if you write ts, you’ll be deprived of macros.
Just try both, compare and share the outcome here 
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Ask two developers for the best way to do a thing, and you’ll get three opinions 
Don’t worry too much about what other people say (myself included). As @IriySoft has suggested, try for yourself.
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