JS files exist as 2 different types. Please find information about each of them below.
Type 1: JavaScript File
Sometimes you need to find a file's extension to properly handle the file. Get the extension using split() and pop(). The split() method converts a string to an array based on a separator. We know a f...
Sometimes you need to find a file’s extension to properly handle the file. Get the extension using split() and pop(). The split() method converts a string to an array based on a separator. We know a file extension is the part after the dot. Use the dot as the separator with split(). You get the extension as a separate item in the array. Another way is using substr(). It returns a substring from indices passed as parameters. We can use it to extract the file extension. With files, a useful thing is the file’s extension. Extract it from the name with split(). Use the parameter as delimiter. pop() gets the last element, the extension. substr() is also good for extracting extensions. The file extension helps identify file types. We can get it from the filename in JavaScript.
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