In general, using a catch statement in Axios to handle errors is not slower than using an if statement to check for errors, as the difference in performance is likely to be negligible. In fact, using a catch statement can be more convenient and efficient, especially if you are handling multiple errors and want to avoid writing repetitive code.
However, if you expect to encounter a specific error response code (such as a 404) frequently and want to handle it differently than other errors, it might make more sense to customize the Axios instance using the validateStatus option. This option allows you to define a custom function that determines whether a given HTTP response status code is considered an error or not. By default, Axios considers any status code outside the range of 200-299 to be an error.
For example, to treat 404 responses as non-errors, you could set validateStatus as follows:
axios.create({
validateStatus: function (status) {
return status >= 200 && status < 300 || status === 404; // status >= 200 and < 300 or status is 404
}
});
As for whether using AWS Lambda or different JavaScript/browser/Node versions would make a difference, it's unlikely to have a significant impact on the choice of using a catch statement or an if statement to handle errors in Axios. However, performance considerations for your specific use case may vary based on the specific environment you are working in.
