= If Expression =

The '''if''' expression evaluates to exactly one of two expressions based on a condition.

=== Grammar ===
{{{
if(<condition>, <texpr>, <fexpr>)
}}}

If the '''condition''' is true, '''texpr''' is evaluated; otherwise '''fexpr''' is evaluated. The condition is always evaluated and subsequently '''texpr''' or '''fexpr''' will be unless condition threw an exception.

The type of the '''if''' expression is the greatest common denominator between the type of '''texpr''' and the type of '''fexpr'''.

Note that using '''if''' expressions to check for '''nil''' is uncommon, since there is a coalesce operator for that purpose which is more succinct and avoids double evaluation.

{{{
#!cobra
# Example 1 
print if(x>y, x, y) 

# Example 2 
print if(value, 'yes', 'no') # type is String 

# Example 3 
total += if(direction==DirectionEnum.Long, +1, -1) * amount 

# Example 4 
foo = if(condition, 'x', nil) # type is String? 

# Example 5 
foo = if(condition, 'x', 5) # type is Object 
}}}