What is negative infinity in JavaScript ?
The negative infinity in JavaScript is a constant value that is used to represent a value that is the lowest available. This means that no other number is lesser than this value. It can be generated using a self-made function or by an arithmetic operation.
Note: JavaScript shows the NEGATIVE_INFINITY value as -Infinity.
Negative infinity is different from mathematical infinity in the following ways:
- Negative infinity results in -0(different from 0 ) when divided by any other number.
- When divided by itself or positive infinity, negative infinity return NaN
- Negative infinity, when divided by any positive number (apart from positive infinity) is negative infinity.
- Negative infinity, divided by any negative number (apart from negative infinity) is positive infinity.
- If we multiply negative infinity with NaN, we will get NaN as a result.
- The product of 0 and negative infinity is Nan.
- The product of two negative infinities is always a positive infinity.
- The product of both positive and negative infinity is always negative infinity.
Syntax:
Number.NEGATIVE_INFINITY
Example 1:
html
<body> <h1 style="color: green;"> GeeksforGeeks </h1> <h3> What is negative infinity in JavaScript? </h3> <button onclick="geekPositiveInfinity()"> Generate negative infinity </button> <p id="geek"></p> <script> function geekPositiveInfinity() { var n=(-Number.MAX_VALUE)*2; document.getElementById("geek").innerHTML= "Here the number generated is twice of negative of Number.MAX_VALUE"+"<br>"+ " which is lesser than lower limit"+"<br><br>"+n; } </script></body> |
Output:
JavaScript Negative Infinity
Example 2:
HTML
<body> <h1 style="color: green;"> GeeksforGeeks </h1> <h3> Negative infinity in JavaScript </h3> <h4> Operations with Negative infinity </h4> <ol> <li id="divide"> <b>Divide any number by NEGATIVE_INFINITY </b> <br> 561 / Number.NEGATIVE_INFINITY = </li> <br> <li id="divideSelf"> <b>Divide negative infinity by itself</b> <br> Number.NEGATIVE_INFINITY / Number.NEGATIVE_INFINITY = </li> <br> <li id="dividePos"> <b>Negative infinity divided by any Positive number(except Positive infinity)</b> <br> Number.NEGATIVE_INFINITY / 123 = </li> <br> <li id="divideNeg"> <b>Negative infinity divided by any Negative number(except Negative infinity)</b> <br> Number.NEGATIVE_INFINITY / -123 = </li> <br> <li id="mulnan"> <b>Multiply Negative Infinity by NaN</b> <br> Number.NEGATIVE_INFINITY * NaN = </li> <br> <li id="mulZero"> <b>Product of Zero and Negative infinity</b> <br> 0 * Number.NEGATIVE_INFINITY = </li> <br> <li id="mulSelf"> <b>Product of two Negative infinity</b> <br> Number.NEGATIVE_INFINITY * Number.NEGATIVE_INFINITY = </li> <br> <li id="mulInf"> <b>Product of Negative infinity and Positive infinity</b> <br> Number.NEGATIVE_INFINITY * Number.POSITIVE_INFINITY = </li> <br> </ol> <button onclick="calc()">Click Here to calculate</button> <script> function calc() { document.getElementById("divide").innerHTML+= 561 / Number.NEGATIVE_INFINITY; document.getElementById("divideSelf").innerHTML+= Number.NEGATIVE_INFINITY / Number.NEGATIVE_INFINITY; document.getElementById("dividePos").innerHTML+= Number.NEGATIVE_INFINITY / 123; document.getElementById("divideNeg").innerHTML+= Number.NEGATIVE_INFINITY / -123; document.getElementById("mulnan").innerHTML+= Number.NEGATIVE_INFINITY * NaN; document.getElementById("mulZero").innerHTML+= 0 * Number.NEGATIVE_INFINITY; document.getElementById("mulSelf").innerHTML+= Number.NEGATIVE_INFINITY * Number.NEGATIVE_INFINITY; document.getElementById("mulInf").innerHTML+= Number.NEGATIVE_INFINITY * Number.POSITIVE_INFINITY; } </script></body> |
Output
JavaScript Negative Infinity
Recommended Article: JavaScript Infinity Property
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