For example, a value of -1 is the last character in the string, a value of -2 is the second last character in the string and so on. If a negative value is provided for this parameter, the slice () method will measure the position from the end of the string. So we can compose those functions to build our final getName function. The position in string where the extraction will start. The algorithm is: split by the colon and then get the first element of the given list. Let's build a first function: const first = (list) => list I have looked at trim, but it looks like it is only trimming whitespace and slice which I don't see how this would work. To get the first element we can use the list operator. How do I chop/slice/trim off last character in string using Javascript Ask Question Asked 14 years ago Modified 1 year, 5 months ago Viewed 2.3m times 2485 I have a string, 12345.00, and I would like it to return 12345.0. Example: splitByTilde("john smith~123 Street~Apt 4~New York~NY~12345") // So now we can use our specialized splitByTilde function. For example, str.slice (1, 4) extracts the second character through the fourth character (characters indexed 1, 2, and 3 ). slice () extracts up to but not including inde圎nd. Changes to the text in one string do not affect the other string. We want to make this "john smith~123 Street~Apt 4~New York~NY~12345" into this const split = (separator) => (text) => text.split(separator) Description slice () extracts the text from one string and returns a new string. So the first thing would be the split function. This string.split("~") gets things done.Īnother functional approach using curry and function composition.
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