Addition Operator and String

The + operator can also be used to concatenate strings, for example:

'Text1' + ' ' + 'Text2'

The result will be 'Text1 Text2'

Adding a number and a string will always return a string, if one of the two operands cannot be converted to a number. Otherwise, a number will be returned. For example:

10 + 'a'

The result will be the string 10 a.

10 + '5'

The result will be number 105.