The most common uses of JavaScript Number and Math Methods
The number type is the primitive data type. It is defined by JavaScript. A number is a primitive object used to represent and manipulate numbers like 20 or -17.
NaN property- The NaN property means Not a Number. This property indicates which value is not a pure number.
isNaN() -Use the isNaN() function to check which value is NaN or Not .If the value is NaN it returns true otherwise false.
Number()- The Number() function used to convert any value to a number but if the value can not be converted to a pure number, its return NaN.
parseFloat()- This function parses a string and returns a floating number.
If the value can not be converted to a floating point, its return NaN. Some examples are given below.
parseInt()-This function parses a string and returns an integer.
If the value can not be converted to an integer, its return NaN. Some examples are given below.
Math- Math is a built-in javascript Object. It has some properties and methods for mathematical operation. Some properties and methods are given below.
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Math.abs()- This function returns the absolute value of a number.Like, it returns a number of n if n is positive or zero or negative otherwise it returns NaN. Only it returns 0 if you pass empty string/array/null.
Math.ceil()- Converting a decimal number to a whole integer number always returns the largest around value.
Math.floor()-Converting a decimal number to a whole integer number always returns the smallest around value.
Math.min()- This function returns the lowest value from a set of numbers.
Math.max()- This function returns the highest value from a set of numbers.
Math.random()- The random method returns a random number between 0(inclusive) and 1 (exclusive).
Math.round()-Converting a decimal number to a whole integer number always returns a rounded value.
Math.sqrt()- The Math.sqrt() function returns the square root of a number.
Math.pow()- This function has two-parameter . It calculates the value by the way of x^y.
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