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Assertion with assert

Assertion with assert

Learn how to use the assert statements in Dart.

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assert is an incredibly useful statement that allows you to put conditions on code execution. It’s used to disrupt normal execution when a boolean condition is false.

Syntax

The syntax is as follows:

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assert(condition, optional message)

The first argument passed to assert can be any expression that reduces to a boolean value. If the expression’s value is ...