Cristian Salcescu's Blog, page 3

How to Create a Card Component in React

Function component, cards map, and more

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How to Manage the State for a DropDownList with React Hooks

State hook, controlled input, and more

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How to Conditionally Disable the Submit Button in a Function Component

Associated state, derived state, and more

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How to Access Data from a Child Form Component with React Hooks

Passing refs to child forms, exposing onChange on form components, and more

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Top 7 Features I Don’t Use in JavaScript

The this keyword, classes, function generators, and more

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How to Detect when All Images are Loaded in a React Component

onLoad, onErrror events, the after decorator, and more

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Preloading Images and Detecting When All Are Loaded

Quick start with the Image constructor, promises, and more

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How to Do a Group By on a Single Property Using the Array Reduce Method

Group by, arrays, maps, reduce, and more

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How to Convert a List of Inverted Data to Its Standard Form

Quick start with the array reduce method

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What is a Value?

Variables vs values, primitives, functions, objects, and classes are values

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