what is different between string +, string.concat();
i mean
string a="sasi", string b="surya";
string x= a+b, and string x= string.concat(a,b);
what is different between string + , string.concat() ; i mean string a=sasi, string
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what is different between string +, string.concat();
i mean
string a="sasi", string b="surya";
string x= a+b, and string x= string.concat(a,b);
There is no difference. The plus (+) operator compiles to a string.concat method; see here and here.
Newer versions of the compiler optimize the usage of the (+) operator anyways, so they are equally efficient.