If the parameter is a date object the number function returns the number of milliseconds since midnight january 1 1970 utc. The same goes for the other way around converting a string to a number.
How To Get Numbers From A String In Javascript
Javascript string to number. False becomes 0 true becomes 1. If the value cannot be converted to a legal number nan is returned. The number constructor contains constants and methods for working with numbers. The best one in my opinion is to use the number object in a non constructor context without the new keyword. The number function converts the object argument to a number that represents the objects value. It uses the string and number constructor to cast the string to a number and back again and thus checks if the javascript engines perfect minimal form the one it got converted to with the initial number constructor matches the original string.
It attempts to convert any value to a number. Converting a number to a string javascript convert number to string is a common and simple operation. Use the number object. Javascript provides various ways to convert a string value into a number. This means it can represent fractional values but there are some limits to what it can store. Values of other types can be converted to numbers using the number function.
Converting string to number as with the previous shown methods javascript also provides functions to easily transform a string to a primitive number. Number is the javascript number constructor called as a function which performs a type conversion. The javascript number type is a double precision 64 bit binary format ieee 754 value like double in java or c.
Gallery of Javascript String To Number
