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I have a question about the default behavior of JavaScript's parseFloat function in different parts of the world.
In the US, if you call parseFloat on a string "123.34", you'd get a floating point number 123.34.
If I'm developing code in say Sweden or Brazil and they use a comma instead of a period as the decimal separator, does the parseFloat function expect "123,34" or "123.34".
Please note that I'm not asking how to parse a different culture's number format in the US. I'm asking does parseFloat in Sweden or Brazil behave the same way it does inside the US, or does it expect a number in its local format? Or to better think about this, does a developer in Brazil/Sweden have to convert strings to English format before it can use parseFloat after extracting text from a text box?
Please let me know if this doesn't make sense.
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The parseFloat() function is used to accept the string and convert it into a floating-point number. If the string does not contain a numeral value or If the first character of the string is not a Number then it returns NaN i.e, not a number.
parseFloat is a bit slower because it searches for first appearance of a number in a string, while the Number constuctor creates a new number instance from strings that contains numeric values with whitespace or that contains falsy values.
parseInt is for converting a non integer number to an int and parseFloat is for converting a non float (with out a decimal) to a float (with a decimal). If your were to get input from a user and it comes in as a string you can use the parse method to convert it to a number that you can perform calculations on.
The parseFloat() method in Float Class is a built in method in Java that returns a new float initialized to the value represented by the specified String, as done by the valueOf method of class Float. Parameters: It accepts a single mandatory parameter s which specifies the string to be parsed.
parseFloat doesn't use your locale's definition, but the definition of a decimal literal.
It only parses . not ,
I'm brazilian and I have to replace comma with dot before parsing decimal numbers.
parseFloat specification
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No, parseFloat is specified to parse DecimalLiterals, which use the dot as decimal separator. It does not depend on the current environment's locale settings.
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