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Concatenation

Concatenation involves adding two or more strings together, creating a larger string containing the combined data of those original strings. This is done in JavaScript using the + operator.

var bigStr = 'Hi ' + 'JS strings are nice ' + 'and ' + 'easy to add';

Add up the different names so that the fullName variable contains John's complete name.

var firstName = "John";
var lastName = "Smith";

var fullName =
var firstName = "John";
var lastName = "Smith";

var fullName = firstName + " " + lastName;
assert(fullName === 'John Smith');