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A version of Snap! programming language.

Examples:

Hello, World! - Scratch (498):

Unlike Scratch, in Snap! each script must start with a “hat” block defining the condition upon which the script runs. “When green flag clicked” hat runs the script upon presentation start.

Factorial - Scratch (499):

This example shows iterative calculation of factorial. To output results in required multiline format a global list variable is used.

Factorial - Scratch (500):

This example uses recursive method of factorial calculation. Snap! allows to create user-defined blocks, in this case factorial block of type reporter (a block that returns a value, i.e. a function block). The newly defined block appears in the blocks palette immediately, and can be used when editing its own definition, thus allowing recursive calls.

Fibonacci numbers - Scratch (501):

This example uses recursive calculation of Fibonacci numbers. To speed up calculations, newly found numbers are written to “cache” which is simply a global list.

Quadratic equation - Scratch (502):

In Snap! block join conveniently allows to concatenate arbitrary number of arguments.

CamelCase - Scratch (503):

Snap! has a slightly larger list of built-in blocks than Scratch; for example, blocks unicode of _ and unicode _ as letter are built-in. In this example these blocks are used to define blocks isLetter, toLower and toUpper, equivalent to functions of the same name in other languages.

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