Concatenate strings in JavaScript
Question:
How to concatenate strings in JavaScript? Answer:
const str1 = 'Hello'.concat(', ', 'John'); // Hello, John
const str2 = 'Hello' + ', ' + 'John'; // Hello, John
Description:
If you want to extend an existing string with additional string(s), then you can use the contact method. The concat() method concatenates the string arguments to the calling string and returns a new string.
However, it is strongly recommended - for performance reasons - to use the assignment operators (+, +=) instead of the concat() method.
Reference:
The concat method reference
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concat, concatenate, add, join, javascript, concatenate strings Technical term:
Concatenate strings in JavaScript