Built-in object types can be: objects, arrays, dates, maps, sets, intarrays, floatarrays, promises, and more. A JavaScript variable can hold any type of data. In programming, data types is an important concept. To be able to operate on variables, …

Chart.js is an free JavaScript library for making HTML-based charts. It is one of the simplest visualization libraries for JavaScript, and comes with the many built-in chart types: How to Use Chart.js? 1. Add a link to the providing CDN (Content Delivery Network): 2. Add a <canvas> to where in the HTML you want to draw the chart:

Mar 8, 2025 · In JavaScript, each value has a data type, defining its nature (e.g., Number, String, Boolean) and operations. Data types are categorized into Primitive (e.g., String, Number) and Non-Primitive (e.g., Objects, Arrays).

Mar 6, 2025 · This article attempts to list the built-in data structures available in JavaScript and what properties they have. These can be used to build other data structures. The language overview offers a similar summary of the common data types, but …

Data types represent the different kinds of values we can use in JavaScript. There are altogether 8 basic data types in JavaScript. Textual data. An integer or a floating-point number. An integer with arbitrary precision. Any of two values: true or false. A data type whose variable is not initialized. Denotes a null value.

Apr 15, 2025 · Follow this guide to get familiar with all major concepts of Chart.js: chart types and elements, datasets, customization, plugins, components, and tree-shaking. Don't hesitate to follow the links in the text. We'll build a Chart.js data visualization with a couple of charts from scratch:

Oct 14, 2024 · Master JavaScript data types with our in-depth guide. Learn about primitive and complex types, type coercion, best practices, and common pitfalls.

Jun 6, 2023 · This article will serve as a comprehensive guide to all the primitive and reference data types in JavaScript, from the basics like string, number, and boolean, to the more complex and specialized types such as Map, Set, WeakMap, WeakSet, RegExp, Promise, and Typed Arrays. Each section includes relevant code examples for easier understanding.

In this chapter you'll learn about JavaScript data types and their dynamically typed behavior, how there are only a few core JavaScript data types, how these JavaScript data types have evolved over time, as well as how more sophisticated JavaScript data types have been incorporated into later ECMAScript versions to support more advanced constructs.

Jul 9, 2024 · There are 8 basic data types in JavaScript. Seven primitive data types: number for numbers of any kind: integer or floating-point, integers are limited by ±(2 53-1). bigint for integer numbers of arbitrary length. string for strings. A string may have zero or more characters, there’s no separate single-character type. boolean for true/false.