Question

当我将promise的解决/拒绝处理移动到命名函数时，它不起作用。有人可以解释为什么吗？

工作的：

function getPremium(policyNumber, agentNumber) {
    return new Promise(function (resolve, reject) {
        soap.createClient(wsdl, function (error, client) {
            client.addSoapHeader(soapHeader());
            client[config.webMethodName](soapBody(number), (error, soapResponse) => {
                return resolve(soapResponse);
            });
        });
    });
}

不起作用：

var handleResponse = (error, soapResponse) => {
    return resolve(soapResponse);
}

function getPremium(policyNumber, agentNumber) {
    return new Promise(function (resolve, reject) {
        soap.createClient(wsdl, function (error, client) {
            client.addSoapHeader(soapHeader());
            client[config.webMethodName](soapBody(number), handleResponse);
        });
    });
}

Answer 1

您未传递resolve和reject功能，因此resolve(soapResponse);无效。

将它们添加到参数列表中并将它们传递给handleResponse函数。

以下是使用currying的示例：

var handleResponse = (resolve, reject) => (error, soapResponse) => { ... }
client[config.webMethodName](soapBody(number), handleResponse(resolve, reject));

命名函数不解析或拒绝承诺

1 个答案: