Constructing Strings with Variables

Joining multiple strings together is known as concatenation. The concatenation operator (+) concatenates two or more string values together and return another string which is the union of the two operand strings. The shorthand assignment operator += can also be used to concatenate strings.

The addition assignment ( += ) operator adds the value of the right operand to a variable and assigns the result to the variable. The types of the two operands determine the behavior of the addition assignment operator.

What is the plus operator in JavaScript? Addition (+) The addition ( + ) operator produces the sum of numeric operands or string concatenation.

The JavaScript concatenation operator is a plus sign (+). This operator lets you add the contents of two or more strings together to create one larger string. You can also use the concat() method to merge strings.

String Concatenation in JavaScript simply means appending one or more strings to the end of another string. There are four methods in JavaScript for string concatenation: using the concat() method, using the '+' operator, using the array join() method, and using template literals.

What is a const in JavaScript? The const declaration creates block-scoped constants, much like variables declared using the let keyword. The value of a constant can't be changed through reassignment (i.e. by using the assignment operator), and it can't be redeclared (i.e. through a variable declaration).

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