Javascript 捕获某种程度上影响对象评估的错误
我的代码结构如下:Javascript 捕获某种程度上影响对象评估的错误,javascript,error-handling,try-catch,Javascript,Error Handling,Try Catch,我的代码结构如下: class CustomError { constructor(status, error = null, message = null) { this.status = status; this.error = error; this.message = message; } } const foo = async function() { throw new CustomError('foo error'); } const bar
class CustomError {
constructor(status, error = null, message = null) {
this.status = status;
this.error = error;
this.message = message;
}
}
const foo = async function() {
throw new CustomError('foo error');
}
const bar = async function() {
try {
foo();
} catch (error) {
if (error instanceof CustomError) {
throw error;
}
throw new CustomError('bar error');
}
}
bar();
这会抛出条错误
我把它放在if
语句之前:
console.log(CustomError的错误实例,error)
哪些日志:
false
CustomError {status: "foo", message: null, error: null}
这似乎是矛盾的。如果它将
error
记录为CustomError
不应该error instanceof CustomError
返回true
?这是否回答了您的问题?这回答了你的问题吗?