Reactive expressions

Detailed Description

Reactive expressions are a way to create dynamic values that automatically update when their dependencies change. They're particularly useful for creating computed properties that depend on other properties.

APropertyPrecomputed<int> sum = [&] {
  return property1 + property2;  // automatically tracks dependencies
};

This creates a readonly property that computes its value based on other properties. Dependencies are automatically tracked when the expression accesses other properties. The value is recomputed lazily when accessed after dependencies change.

Related Pages

• AForEachUI

  ---

  Customizable lists display.

• declarative::contract::In

  ---

  Denotes a potentially reactive value in declarative contracts.

• APropertyPrecomputed

  ---

  Readonly property that holds a value computed by an expression.

• AUI_REACT

  ---

  Explicitly denotes a reactive expression.