- var filename = get_filename_or_something() ; # !important
- if ( !! filename ) {
- # do code
- }
filename
is undefined, that could be a problem. One bang forces it into the logical realm, and the other bang reverses it, making positives negatives. In perl, we'd just go if ( $filename ) {}
, but we're cool like that.
But, as you might imagine, it is absolutely impossible to look this one up on Google.
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