Web Reference: A JavaScript variable can hold 8 types of data. 7 Primitive Data Types and 1 Object Data Type. The Object data type can hold many different object types. Dec 24, 2020 · Teaching the concept of "data types" with JavaScript is often a difficult task because JavaScript is considered a "dynamically typed" coding language. Below is some JavaScript code: Mar 13, 2026 · JavaScript supports various datatypes, which can be broadly categorized into primitive and non-primitive types. Primitive datatypes represent single values and are immutable. 1. Number: Represents numeric values (integers and decimals). 2. String: Represents text enclosed in single or double quotes. let s = "Hello, World!"; 3.
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