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I have been given the two strings "str1" and "str2" and I need to join them into a single string. The result should be something like this: "String1, String 2". The "str1" and "str2" variables however do not have the ", ".
So now for the question: How do I join these strings while having them separated by a comma and space?
This is what I came up with when I saw the "task", this does not seperate them with ", " though, the result for this is “String2String1”.
function test(str1, str2) { var res = str2.concat(str1); return res; } 
992
To concatenate strings with a separator, add the strings to an array and call the join() method on the array, passing it the separator as a parameter. The join method returns a string, where all array elements are joined using the provided separator. Copied!
You concatenate strings by using the + operator. For string literals and string constants, concatenation occurs at compile time; no run-time concatenation occurs. For string variables, concatenation occurs only at run time.
Python concatenate strings with space We can also concatenate the strings by using the space ' ' in between the two strings, and the “+” operator is used to concatenate the string with space. To get the output, I have used print(my_str).
Simply
return str1 + ", " + str2; If the strings are in an Array, you can use Array.prototype.join method, like this
var strings = ["a", "b", "c"]; console.log(strings.join(", ")); Output
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