Ruby Unique Feature – Block

Block is an interesting ruby languange feature. Block is statements enclosed together using do end or curly braces {}. We can find block in action at code that iterating  an array variable.

Lets try block on irb (interactive ruby)  !!!

Sample above creating variable x which is an array of string. Next command iterating the array using each method and a block passed to it. The block have a parameter named n and n will contain each array element passed to it by each method. Code inside block print output to screen.

Below is an example of block using curly braces.

That is simple examples of block in ruby language. It is an unique and usefull feature.

Bye for now !

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