String concatenation

If StringConcat is enabled, the result will be a string concatenation. Otherwise, it will try to perform an arithmetic addition if possible. When the arithmetic operation fails, if both values are strings then the result will be a string concatenation.

Example

With this option enabled, string concatenation will always happen.

var configuration = new ExpressionConfiguration
{
    Evaluation = new ExpressionEvaluationOptions
    {
        StringConcat = true
    }
};

var expression = new Expression($"5 + '1'", configuration);
var result = expression.Evaluate();
Debug.Assert(result); // 51

Summary

Expression	`StringConcat` Enabled	`StringConcat` Disabled
`'L' + 'eo'`	`'Leo'`	`'Leo'`
`1 + '2'`	`'12'`	`3`
`'1' + '2'`	`'12'`	`3`

Table of Contents

String concatenation

Example

Summary