Try BoxLang - Play Now

// Define a user struct/map
user = {
fname: "Box",
lname: "Lang"
}
// Add Closure to user to get full name
user.getFullName = () => user.fname & user.lname
dump( user )

// Pure Lambda to flip an incoming string
flipIt = (str) -> str.reverse()
println( "Full Name: #user.getFullName()#" )
println( "Flipped Last Name: " & flipIt( user.lname ) );

// Array Member Methods With Lambdas
nums = [1, 2, 3, 4, 5]
.filter( n -> n % 2 == 0 ) // Keep evens
.map( n -> n * n ) // Square them

// Native JSON
println( nums.toJSON() )
// Iterate and call a bif statically
nums.each( ::println )

// Showcase a quick math operation, last operation is the evaluation
0.0000166667 * 5
Evaluation results goes here
Buffer Output goes here