'use strict';
function createError(err, code, props) {
var key;
if (!(err instanceof Error)) {
throw new TypeError('Please pass an Error to err-code');
}
if (typeof code === 'object') {
props = code;
} else if (code != null) {
err.code = code;
}
if (props) {
for (key in props) {
err[key] = props[key];
}
}
return err;
}
module.exports = createError;