I'm trying to implement a switch statement that returns an error message based on the http status code. Here's what I have so far:
switch(true){
case err.status.test(/^4/): // 4xx
res.fail(err.status, err);
break;
case err.status.test(/^5/): // 5xx
res.error(err.status, err.message, {data: err});
break;
Can someone confirm if my regex is correct for this task?
test() is a method specifically for RegExp, so the correct usage would be:
case /^4/.test(err.status):
In my opinion, relying on switch(true) { ... } can lead to confusion in code readability. I prefer the following approach:
switch(Math.floor(err.status/100)) {
case 4:
res.fail(err.status, err);
break;
case 5:
res.error(err.status, err.message, {data: err});
break;
}
Creating an error object can be a helpful strategy, with keys representing the status code and values for their respective error/success messages.
errorList = {1: 'Informational responses', 2: 'Success', ...}
console.log(errorList[Math.floor(err.status/100)])
This approach often achieves the desired outcome using fewer lines of code.
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