Does Promise Reject Throw Error at Maurice Delgado blog

Does Promise Reject Throw Error. when a promise rejects, the control jumps to the closest rejection handler. to reject, you would need to either throw an error, actually cause an error, return a new promise that eventually rejects, or. any function that is expected to return a promise under operational conditions should throw synchronously when the error is due to. if we throw an error like new error(something wrong!) instead of calling the reject from the promise executor and handlers, it will still be treated as a rejection. That’s very convenient in practice. inside the promise, the catch() method will catch the error caused by the throw statement and reject(). the question is referring to whether you should use promise.reject or throw when you want to return a rejected promise (a promise that will. If an error occurs and you don’t. the reject can only be used with a javascript promise but throw unlike reject can be used to create and throw user.

return Promise.reject(error);的时候前端将错误以报错的形式显示出来慕课网
from coding.imooc.com

the question is referring to whether you should use promise.reject or throw when you want to return a rejected promise (a promise that will. any function that is expected to return a promise under operational conditions should throw synchronously when the error is due to. inside the promise, the catch() method will catch the error caused by the throw statement and reject(). That’s very convenient in practice. when a promise rejects, the control jumps to the closest rejection handler. the reject can only be used with a javascript promise but throw unlike reject can be used to create and throw user. to reject, you would need to either throw an error, actually cause an error, return a new promise that eventually rejects, or. If an error occurs and you don’t. if we throw an error like new error(something wrong!) instead of calling the reject from the promise executor and handlers, it will still be treated as a rejection.

return Promise.reject(error);的时候前端将错误以报错的形式显示出来慕课网

Does Promise Reject Throw Error if we throw an error like new error(something wrong!) instead of calling the reject from the promise executor and handlers, it will still be treated as a rejection. to reject, you would need to either throw an error, actually cause an error, return a new promise that eventually rejects, or. inside the promise, the catch() method will catch the error caused by the throw statement and reject(). the question is referring to whether you should use promise.reject or throw when you want to return a rejected promise (a promise that will. when a promise rejects, the control jumps to the closest rejection handler. If an error occurs and you don’t. any function that is expected to return a promise under operational conditions should throw synchronously when the error is due to. the reject can only be used with a javascript promise but throw unlike reject can be used to create and throw user. That’s very convenient in practice. if we throw an error like new error(something wrong!) instead of calling the reject from the promise executor and handlers, it will still be treated as a rejection.

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