The String Concatenation



The String Concatenation

CGS uses operator ‘+’ for concatenating string expressions. When the operator ‘+’ is used between a string and a number expression, the number expression will be converted to a string and then concatenated to the string expression.

For example, if we have an expression: “1” + 6, its value is a string: “16”.

Invariant strings

Strings are invariant, meaning that an existing string cannot be changed. Therefore when making a string concatenation, a new string must be allocated.

If this is done excessively, e.g. in a loop, this may result in severe performance degradation of the script and possible the whole server.

Use the StringBuilder when it is necessary to do this kind of processing.