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- Math acos() method
- Math asin() method
- Math atan() method
- Math cbrt() method
- Math ceil() method
- Math cos() method
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- Math sinh() method
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- getDate()
- getDay()
- getFullYears()
- getHours()
- getMilliseconds()
- getMinutes()
- getMonth()
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- getUTCDate()
- getUTCDay()
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- setUTCMonth()
- setUTCSeconds()
- toDateString()
- toISOString()
- toJSON()
- toString()
- toTimeString()
- toUTCString()
- valueOf()
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- Object.defineProperty() method
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- Object.entries() method
- Object.freeze() method
- getOwnPropertyDescriptor() method
- getOwnPropertyDescriptors() method
- getOwnPropertyNames() method
- getOwnPropertySymbols() method
- Object.getPrototypeOf() method
- Object.is() method
- preventExtensions() method
- Object.seal() method
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- copywithin()
- entries()
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- findIndex()
- forEach()
- includes()
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- isArray()
- join()
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- map()
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- reduce(function, initial)
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- some()
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- Array slice()
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- values()
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- How to Run a JavaScript Program in Notepad
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- How to Draw a Circle in JavaScript?
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- How long does it take to learn JavaScript?
- DSA in JavaScript
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- Method Chaining in JavaScript
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- The jQuery Data Table Plugin
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- JavaScript Compilers
- Difference Between const and let in JavaScript
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- JavaScript Wait
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- Advanced JavaScript Concepts
- How to Declare the Optional Function Parameters in JavaScript?
- Best JavaScript Editor
- JavaScript Add Style to Element
- Check if a String contains Substring in JavaScript
- JavaScript Concepts That Every Web Developer Should Know
- Email Validation using Regex in JavaScript
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- How to Find Object Length in JavaScript
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- JavaScript Algorithms and Data Structures Masterclass
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- JavaScript Complete Reference
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JavaScript Number Object
Last Updated : 10 Jun 2026
The JavaScript number object enables you to represent a numeric value. It may be integer or floating-point. JavaScript number object follows IEEE standard to represent the floating-point numbers.
By the help of Number() constructor, you can create number object in JavaScript. For example:
If value can't be converted to number, it returns NaN(Not a Number) that can be checked by isNaN() method.
You can direct assign a number to a variable also. For example:
Output:
102 102.7 130000 16
JavaScript Number Constants
Let's see the list of JavaScript number constants with description.
| Constant | Description |
|---|---|
| MIN_VALUE | returns the largest minimum value. |
| MAX_VALUE | returns the largest maximum value. |
| POSITIVE_INFINITY | returns positive infinity, overflow value. |
| NEGATIVE_INFINITY | returns negative infinity, overflow value. |
| NaN | represents "Not a Number" value. |
JavaScript Number Methods
Let's see the list of JavaScript number methods with their description.
| Methods | Description |
|---|---|
| isFinite() | It determines whether the given value is a finite number. |
| isInteger() | It determines whether the given value is an integer. |
| parseFloat() | It converts the given string into a floating point number. |
| parseInt() | It converts the given string into an integer number. |
| toExponential() | It returns the string that represents exponential notation of the given number. |
| toFixed() | It returns the string that represents a number with exact digits after a decimal point. |
| toPrecision() | It returns the string representing a number of specified precision. |
| toString() | It returns the given number in the form of string. |
Next TopicJavaScript Boolean
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