What is async Dart?

Advertisements. An asynchronous operation executes in a thread, separate from the main application thread . When an application calls a method to perform an operation asynchronously, the application can continue executing while the asynchronous method performs its task.

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How do you write a fat arrow?

An arrow function expression is an anonymous function expression written with the “fat arrow” syntax ( => ) . Like traditional function expressions, arrow functions are not hoisted, and so you cannot call them before you declare them. They are also always anonymous—there is no way to name an arrow function.

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