1. Converting numbers to strings
2. Converting numbers to integers
3. Converting numbers to fractions
let a = 2 var b = 3 console.log(a+b);
- (equality), !
- (identity), !
- (greater than)
- (less than).
A comparison is a method of determining the relationship between two numbers. Numbers are compared by using an operator. Comparison operators are usually placed in a conditional statement and return either true or false. The most common operators used to compare two numbers are the equal sign, the greater than sign, and the less than sign.
- Number()- this method returns the string representation of a number, e.g., Number(123) will return “123”
- parseInt()- this method parses a string, and returns an integer representation of it, e.g. parseInt(“123”) will return 123
- parseFloat()- this method parses a string, and returns a floating-point representation of it, e.g. parseFloat(“1.23”) will return 1
- The Number() function, which converts its parameter into a number
Number("25") // returns 25 Number("25.51") // returns 25.51 Number("25px") // returns NaN Number("25.5something") // returns NaN
Searching for Specific Methods of the Math Object
The Math object is the built-in object that provides methods for performing the basic arithmetic, trigonometry, and other mathematical operations. The Math object has many ways that can use to perform various calculations. To find the method you are looking for, use the following steps:
- Open a new tab in your browser and type “window. Math” into the address bar. This will open up a page with all the methods available to you on the Math object.
- Click on “find number method in js” or whichever function you are looking for.
- Who will now take you to a page that lists all of the functions available under “find number method in js.” You can see what parameters each function takes, as well as
1. Math. pow() – Returns the value of x raised to the power y.
2. Math.sqrt() – Returns a square root of x as a number without any unit or exponent (i.e., it is equivalent to Math.sqrt(x) / Math.sqrt(x)).
3. Math.random() – Returns a pseudorandom number between 0 (inclusive) and 1 (exclusive).
4. Math math = new Math(); – Creates an instance of the object with no arguments, which is equivalent to new Math().
5.”Math” +. “” + “random”
<script> var x = 5; // number without decimal var y = 5.42; // number with decimal </script>