Home HTML CSS JAVASCRIPT BOOTSTRAP Python Docker ML tutorial ☰ About us Privacy policy

Number methods and properties



Number Methods and properties


toExponential() method

toExponential() return's a string by using exponential form notation. It's internally uses number rounded values format. 



  <script>
  
    var a=4.667;
    var x=a.toExponential(2);
    var y=a.toExponential(3);
    document.write(x);
    document.write(y);

</script>


toFixed()

toFixed() return's string as number withe rounded decimal values format. 


  <script>

         var a=4.678;
          document.write(a.toFixed(1));
          document.write(a.toFixed(3));


</script>

toPrecision() method

toPrecision() in javascript return's a string according to the length. 


  <script>

        var a=8.567;
        document.write(a.toPrecision());
        document.write(a.toPrecision(2));
       document.write(a.toPrecision3(3));

</script>

valueOf()

valueOf() method in javascript return's numbers. 


  <script>

      var a=567;
 document.write(a.valueOf()); // It return's 567


</script>

parseInt() method

parseInt() method used to parse string values in JavaScript and return numbers.We can use spaces as well no problem at all.It always return's first number . 


  <script>

        document.write(parseInt("20"));
        document.write(parseInt("2.89"));
        document.write(parseInt("20 codes"));


</script>

parseFloat() method

parseFloat() method work's similar to parseInt().It also use to parse string values and return always first values. 

  <script>
 
document.write(parseFloat("20"));
document.write(parseFloat("2.89"));
document.write(parseFloat("20 codes"));

</script>

Number MIN_VALUE AND MAX_VALUE properties

MIN_VALUE is use to return smallest values in JavaScript. 


  <script>

     var a=Number.MIN_VALUE;
    document.write(a);


</script>

MAX_VALUE is use to return larges values in JavaScript. 


  <script>

       var a=Number.MAX_VALUE;
      document.write(a);



</script>

JavaScript POSITIVE_INFINITY




  <script>

      
    var a=Number.POSITIVE_INFINITY;
    document.write(a); // It return's positive infinity value


</script>

JavaScript NEGATIVE_INFINITY




  <script>

      var a=Number.NEGATIVE_INFINITY;
      document.write(a);  // It return's positive infinity value 
     

</script>

JavaScript NaN - Not a Number




  <script>

   var a=Number.NaN;
  document.write(a); // It return's NaN


</script>



More Topics