Func.isSimple > Complex

Why is coding sodifficult?

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Two types of Complexity

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Types Essential complexity The problem itself System integration Differential usage

Accidental complexity Frameworks, language features Architectural (anti)-patterns Object oriented programming?

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How do we eliminate

accidental complexity?

Func.is

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In terms of a framework Remove features untill there is nothing left (to

take away) Abstract and generalize what’s left Make it as simple as possible to use

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Simple just ain’t

easy!

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http://www.infoq.com/presentations/Simple-Made-Easy

Rich Hickey

The causal event

-flow

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Let’s get practical

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{Where}{What} {Input}

{Output}{When}

Pure functions The same input will always yield the same output It doesn’t cause any side effects Simple to test, simple to reuse!

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Side effects Conceptually difficult to handle with code Any computer program is irrelevant without

[side] effects. Side effects is an essential complexity

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So where does it leaves Func.is? Separation between what/when and how Good for building distributed systems The union between functional and flow-based

programming A better way to combine computer programs and

build big systems

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Live Demo!

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