Code Explainers

Code explainers tagged #derived-state

typescript
import { Component, input, computed } from '@angular/core';
 
function toNumber(value: number | string): number {
  return typeof value === 'number' ? value : parseFloat(value);

Signal inputs and computed in Angular

signals reactivity derived-state
Intermediate 5 steps
javascript
import { useMemo, useState } from 'react';
 
function ProductList({ products }) {
  const [query, setQuery] = useState('');

Memoizing a filtered list in React

memoization derived-state filtering
Intermediate 8 steps