What is positive infinity in JavaScript ?

0 0 2 minutes read

The positive infinity in Javascript is a number that is constant and represents a value that is the highest available. It can be generated using a self-made function or by an arithmetic operation.

Note: JavaScript shows the POSITIVE_INFINITY value as Infinity.

Positive Infinity: It is different from mathematical infinity in the following ways.

If we divide any positive number by positive infinity, we will get a positive 0
If we divide any negative number by positive infinity, we will get negative 0.
0 multiplied by positive infinity is NaN
NaN multiplied by positive infinity is NaN
We get negative infinity when we divide positive infinity by any negative number (except negative infinity)
We get positive infinity when we divide positive infinity by any positive number (except positive infinity)
Positive infinity divided by either positive or negative infinity is NaN

Syntax:

Number.POSITIVE_INFINITY

Example 1:

html

<body> 
    <h1 style="color: green;"> 
        zambiatek 
    </h1> 
    <h3> 
        What is positive infinity in JavaScript? 
    </h3> 
    <button onclick="geekPositiveInfinity()"> 
        Generate positive infinite 
    </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 Number.MAX_VALUE"+"<br>"+  
              " which is greater than upper limit"+"<br><br>"+n; 
        } 
    </script> 
</body>

Output:

Positive Infinity in JavaScript

Example 2:

HTML

<body> 
    <h1 style="color: green;"> 
        zambiatek 
    </h1> 
    <h3> 
        Positive infinity in JavaScript 
    </h3> 
    <h4>Operations with positive infinity</h4> 
    <ol> 
        <li id="divide"> 
            <b>Divide any number by Positive infinity</b> 
            <br> 
            561 / Number.POSITIVE_INFINITY = 
        </li> 
        <br> 
        <li id="divideNeg"> 
            <b>Divide negative number by infinity</b> 
            <br> -123 / Number.POSITIVE_INFINITY = 
        </li> 
        <br> 
        <li id="mulzero"> 
            <b>0 multiply by Positive infinity</b> 
            <br> 
            0 * Number.POSITIVE_INFINITY = 
        </li> 
        <br> 
        <li id="nanmul"> 
            <b>NAN multiply by Positive infinity</b> 
            <br> 
            NAN * Number.POSITIVE_INFINITY = 
        </li> 
        <br> 
        <li id="dividepos"> 
            <b>Divide Positive infinity by Negative number(except Negative Infinity)</b> 
            <br> 
            Number.POSITIVE_INFINITY / -123 = 
        </li> 
        <br> 
        <li id="divideposinf"> 
            <b>Divide Positive infinity by Positive number</b> 
            <br> 
            0 / Number.POSITIVE_INFINITY = 
        </li> 
        <br> 
        <li id="divideself"> 
            <b>Divide Positive infinity by Positive Infinity or Negative infinity</b> 
            <br> 
            Number.POSITIVE_INFINITY / Number.POSITIVE_INFINITY = 
        </li> 
    </ol> 
    <button onclick="calc()">Click Here to calculate</button> 
    <script> 
        function calc() { 
            document.getElementById("divide").innerHTML+=561/Number.POSITIVE_INFINITY; 
            document.getElementById("divideNeg").innerHTML+=-123/Number.POSITIVE_INFINITY; 
            document.getElementById("mulzero").innerHTML+=0*Number.POSITIVE_INFINITY; 
            document.getElementById("nanmul").innerHTML+=NaN*Number.POSITIVE_INFINITY; 
            document.getElementById("dividepos").innerHTML+=Number.POSITIVE_INFINITY/-123; 
            document.getElementById("divideposinf").innerHTML+=0/Number.POSITIVE_INFINITY; 
            document.getElementById("divideself").innerHTML+=Number.POSITIVE_INFINITY/Number.POSITIVE_INFINITY; 
        } 
    </script> 
</body>

Output:

Positive Infinity in JavaScript

Recommended Article: JavaScript Infinity Property

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