If I have a variable x = “”
And I check for the following condition
if x != 0
Is it evaluated as false across all the browsers ?
Why is 0 treated the same as “” ?
If I have a variable x = And I check for the following condition
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If I have a variable x = “”
And I check for the following condition
if x != 0
Is it evaluated as false across all the browsers ?
Why is 0 treated the same as “” ?
When you use the
==operator JavaScript attempts to convert both operands to the same type for comparison. When you have a string and a number it attempts to convert the string to a number.""converts to0, giving you this result.Because of this behaviour many people chose to use the
===and!==operators instead. Their operands must be the same type to be considered equal.