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Fetch is a relatively low-level API, which allows for precise control of the loading process. It comes with the cost of having to handle two promises every time you use it.Fetch requires us to take one more step when handling responses, as it returns a promise, at which point we don'...
The code checks for the presence of 'XDomainRequest in window through an else if statement, which is considered a better alternative to browser sniffing. If the condition is met, the JSON AJAX request is made using this method. Otherwise, the code falls back to the usual way of making the...