Javascript How to check if a string is empty

Question

I know this is really basic  but I am new to javascript and can t find an answer anywhere   How can I check if a string is empty

User · Answer

This should work   if  variable

User · Answer

If you want to know if it s an empty string use     instead of      if variable               This is because     will only return true if the values on both sides are of the same type  in this case a string   for example   false         will return true  and  false         will return false

User · Answer

I check length   if  str length    0

User · Answer

But for a better check   if str     null    str                 enter code here

User · Answer

if  value               it is empty

[javascript] Javascript: How to check if a string is empty?

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