Re: Conditional assign operator

Yes I like syntactic sugar when it doesn't sacrifice clarity (e.g. class, arrow functions). However, I do like the logical assignment operator pointed out by Jordan somewhat more than the "conditional assign" ("if not assigned") idea at the beginning of this thread. My reason is that you cannot

Re: Conditional assign operator

Hi! > What I've long wanted is an assignment operator which evaluates to the > pre-assignment value of the LHS. > You know, sort of like `a++` evaluates to the pre-incremented value of `a`. Given the amount of confusion that the difference between `++a`, `a++` (and `a += 1`) already has caused,

Re: Conditional assign operator

What I've long wanted is an assignment operator which evaluates to the pre-assignment value of the LHS. You know, sort of like `a++` evaluates to the pre-incremented value of `a`. We could call this this "post-assignment" operator. Has anyone ever proposed that? ``` let a = 1; console.log(a =^=

Re: Conditional assign operator

Are you familiar with https://github.com/tc39/proposal-logical-assignment/ ? On Mon, Apr 13, 2020 at 2:17 AM Sultan wrote: > The following would assign to the address foo in obj if and only if it has > not already been assigned. > > var obj = {} > var foo = Math.random() > obj[foo] ?= 1 > > The

Re: Conditional assign operator

See Stage 3 Logical Assignment Proposal. https://github.com/tc39/proposal-logical-assignment Thanks. 2020年4月13日 18:17 +0900、Sultan のメール: > The following would assign to the address foo in obj if and only if it has > not already been assigned. > > var obj = {} > var foo = Math.random() >