New operator

[kdex]

Please do some research before posting in the future.

[1] https://esdiscuss.org/topic/or-equal-operator
[2] https://esdiscuss.org/topic/proposing-a-conditional-assignment-or-equals-operator
[3] https://esdiscuss.org/topic/new-assignment-operators-not-bit-wise-or
[4] https://esdiscuss.org/topic/please-add-orequal-operator
[5] https://esdiscuss.org/topic/is-much-needed
[6] https://esdiscuss.org/topic/operators-and
[7] https://esdiscuss.org/topic/logical-assignment-operators

On Tuesday, February 13, 2018 10:05:18 PM CET Sebastian Malton wrote:
> Since the following is a decently common idiom I propose that we have a self
> referential version of it.
> 
> Idiom:
> ```js
> myVar = myVar || "default" ;
> ```
> 
> New Operator:
> ```js
> myVar ||= "default" ;
> ```
> 
> Sebastian Malton
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