Eval

The Eval function evaluates an expression by using the specified context.

Syntax

The Eval function has the following syntax:

Integer | Float | String | Boolean = Eval(Expression, Context)

Note: In JavaScript, the Float variable returns extra precision, for example, 10.695671999999998 instead of 10.695672. In IPL, integer division of 10/5 is 2.0. In JavaScript, integer division of 10/5 is 2.

Parameters

The Eval function has the following parameters.

Table 1. Eval function parameters
Parameter	Format	Description
`Expression`	String	Expression to evaluate.
`Context`	Context	Context to use in evaluating the expression.

Return value

Result of the evaluated expression.

Example

The following example shows how to evaluate an expression using the given context.

MyContext = NewObject();
					
MyContext.a = 5;
MyContext.b = 10;
					
MyResult = Eval("a + b", MyContext);
					
Log(MyResult);

This example prints the following message to the policy log:

Parser Log: 15