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Icon

Hello World in Icon

January 3, 2026 iconhello-worldbeginnergetting-startedgoal-directed

Every programming journey starts with Hello World. Let’s write our first Icon program and get a glimpse of this unique language with its goal-directed evaluation.

The Code

Create a file named …

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Variables and Types in Icon

March 29, 2026 iconvariablestypesdata-types

Icon takes a relaxed approach to variables and types. Variables don’t need declarations — just assign a value with := and the variable springs into existence. The type belongs to the value, not …

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