What does the word "proposal" in the ES6 book mean?

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in the book written by ES6 Ruan Yifeng, there are several times the word "proposal". I want to know what it means. Does it mean that ES6, which is not yet formal, is just something that someone may do after it is put forward? can the content be ignored for the time being?

May.04,2022

intensive reading of TC39 and ECMAScript proposal


take a look at the stages

proposal is actually the same as you understand, just provide the proposal. It may or may not be adopted in the future

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