the + operator some times it does nt add the numbers instead it concat those 2 numbers?

for example var a =2; var b=5; var result= a+b; document.write(result); o/p : 25

6/12/2016 2:34:56 AM

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It concatenates strings and adds numbers. var a="2"; var b="3"; document.write(a+b); Returns 23. var a=2; var b=3; document.write(a+b); Returns 5.

ZinC

JavaScript concatenates string and add numbers.

Victor Ogudu

When you want to add, avoid single or double quotes when dealing with numbers else JavaScript will take them as strings. when that happens, you get concatenation instead of addition.

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