One way I think I have faced it..
Whenever I have written something like,
if (!age) { }
I was sure, it ruled out undefined and null too. Knowing it gives additional confidence, :)!
undefined
null
To be exact, it will also rule out NaN, "", '', and -- very error prone -- 0.
NaN
""
''
0
Yeah true.. all those unwanted things! :)
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One way I think I have faced it..
Whenever I have written something like,
I was sure, it ruled out
undefinedandnulltoo. Knowing it gives additional confidence, :)!To be exact, it will also rule out
NaN,"",'', and -- very error prone --0.Yeah true.. all those unwanted things! :)