how to concatenate strings and variables in javascript

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Alessio
23 Feb 2018
1
2var str1 = "Hello ";
3var str2 = "world!";
4var res = str1.concat(str2);
5// does not change the existing strings, but
6// returns a new string containing the text
7// of the joined strings.
Caden
28 Sep 2018
1const helloName = name => `Hello ${name}!`
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