LazyComputed | /mod.ts | tui@2.1.11

Module

x/tui/mod.ts>LazyComputed

🦕 Deno module for creating Terminal User Interfaces

Im-Beast/deno_tui

Latest

examples src tests

mod.ts (default module)

ComputedReadOnlyError

LayoutInvalidElementsPatternError

LayoutMissingElementError

LazyComputed

LazyEffect

Signal

SignalDeepObserveTypeofError

Tui

getComponentClosestToTopLeftCorner

getConnectedSignal

getMultiCodePointCharacters

getOriginalRef

handleInput

handleKeyboardControls

makeArrayMethodsReactive

makeMapMethodsReactive

makeObjectPropertiesReactive

makeSetMethodsReactive

rectangleIntersection

class LazyComputed

implements LazyDependant

extends Computed<T>

import { LazyComputed } from "https://deno.land/x/tui@2.1.11/mod.ts";

LazyComputed is a type of signal that depends on other signals and updates when any of them changes

If time between updates is smaller than given interval it gets delayed
If given Flusher instead, it will update after Flusher.flush() gets called
Both interval and Flusher might be set at the same time.

Examples

Example 1

const multiplicand = new Signal(1);
const multiplier = new Signal(2);
const product = new LazyComputed(() => multiplicand.value * multiplier.value, 16);

console.log(product.value); // 2
await Promise.resolve(); // Dependency tracking is asynchronous read more in `dependency_tracking.ts`

multiplicand.value = 2;
console.log(product.value); // 2
multiplier.value = 7;
console.log(product.value); // 2

setTimeout(() => {
 console.log(product.value); // 14
}, 16)