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Since it is possible to do:
var x = 'foo', y = 'foo';
Would this also be possible?
var x, y = 'foo';
I tried it, however x becomes undefined.
I know this may seem like a silly or redundant question, but if I'm curious about something, why not ask? Also you will probably wonder why I would need two variables equal to the same thing in scope. That is not the point of the question. I'm just curious.
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var is function scoped. let does not allow to redeclare variables. var allows to redeclare variables.
The var statement declares a function-scoped or globally-scoped variable, optionally initializing it to a value.
Var[X+Y] = Var[X] + Var[Y] + 2∙Cov[X,Y] .
var is a keyword, it is used to declare an implicit type variable, that specifies the type of a variable based on initial value.
Not sure if this is what you're asking, but if you mean "Can I assign two variables to the same literal in one line without typing the literal twice?" then the answer is yes:
var x = 10, y = x;
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