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Beginner to JavaScript Developer

Javascript – Functions

Number Methods

The Number object contains only the default methods that are part of every object’s definition.

Sr.No. Method & Description
1 constructor()Returns the function that created this object’s instance. By default this is the Number object.
2 toExponential()Forces a number to display in exponential notation, even if the number is in the range in which JavaScript normally uses standard notation.
3 toFixed()Formats a number with a specific number of digits to the right of the decimal.
4 toLocaleString()Returns a string value version of the current number in a format that may vary according to a browser’s locale settings.
5 toPrecision()Defines how many total digits (including digits to the left and right of the decimal) to display of a number.
6 toString()Returns the string representation of the number’s value.
7 valueOf()Returns the number’s value.

Boolean Methods

Here is a list of each method and its description.

Sr.No. Method & Description
1 toSource()Returns a string containing the source of the Boolean object; you can use this string to create an equivalent object.
2 toString()Returns a string of either “true” or “false” depending upon the value of the object.
3 valueOf()Returns the primitive value of the Boolean object.


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