This is dummy text that could be inside the text area. This is what it's doing and what it should do: If not used, the same string is returned (single item array). It defines the character or the regular expression to use for breaking the string. Building a compose function with reduce: const compose = (.fns) => (value) => fns.reduceRight((acc, fn) => fn(acc), value) Īnd now using it to compose splitByTilde and first functions.I have a small function I found that takes a string from a textarea and then puts it into a canvas element and wraps the text when the line gets too long. str.split(separator, limit) Parameters: This function accepts three parameters as mentioned above and described below: str: This parameter holds the string to be split. So we can compose those functions to build our final getName function. 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 To get the first element we can use the list operator. Use the second parameter ( limit ) to return a limited number. Example: splitByTilde("john smith~123 Street~Apt 4~New York~NY~12345") // Use the JavaScript String split() to divide a string into an array of substrings by a separator. So now we can use our specialized splitByTilde function. We want to make this "john smith~123 Street~Apt 4~New York~NY~12345" into this const split = (separator) => (text) => text.split(separator) 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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