alert(5+'5') \\ 55
alert(5-'5') \\ 0
What is going here?
alert(5+’5′) \\ 55 alert(5-‘5’) \\ 0 What is going here?
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In short terms, nothing wrong here!
The
+operator is “overloaded” for strings as well and works as a concatenation operator. If you apply+to a number and a string it acts like a string concat operator.The
-operator is not “overloaded” for strings. If you apply-to a number and a string it will try to convert the string to number and then do the subtraction, if possible.