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abdulganiyy

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Data Types In JavaScript

In JavaScript, there are seven data types. Six data types are primitive and one is non primitive.

PRIMITIVE DATA TYPES

  1. Number: This can be integers, decimal or floating point numbers.There are also special numbers namely; Infinity and NaN. Infinity is gotten by division with zero and NaN is as a result of incorrect mathematical operation.

  2. Strings: They represent textual data. Strings can be a single character or combination of different characters. Single quotes, double quotes begin and end strings e.g 'sugarcrush' or "sugarcrush".

  3. Boolean: Boolean values can either be True or False. A truthy value simply means yes and a falsy value means no.

  4. Null: When a null value is assigned to a variable in JavaScript, this denotes that the value is not in existence.

  5. Undefined: When a value of undefined is assigned to a variable, this denotes that a value has not been assigned to it. We can also define an undefined value by just declaring a variable without assigning it to any value or explicitly giving it a value of undefined.

  6. Symbol: Symbols are unique identifiers in JavaScript.symbol is created using Symbol() and every value created using this is unique.

NON-PRIMTIVE

Objects are the only non primitive data types in JavaScript. They are used to store key-value pairs collection of items. Objects store complex entities. It can store all the data types discussed above.

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Thomas Bnt • Edited on

Avoid full upcase on title please :)