里面的jquery函数可以调用angular 5函数

Question

我试图在jQuery函数中调用onPaymentStatus（）函数。但是我无法使用这个＆＃39;范围

this.braintree.client.create({
  authorization: 'client_token'},
  (err, client) => {
      client.request({
        endpoint: 'payment_methods/credit_cards',
        method: 'post',
        data: data
      }, function (requestErr, response) {

       if (requestErr) { throw new Error(requestErr); }
       console.log('Got nonce:', response.creditCards[0].nonce);
       this.onPaymentStatus(response.creditCards[0].nonce); //
    });
});

onPaymentStatus (nonce) {
  console.log(nonce);
}

我收到错误ERROR TypeError：无法读取属性＆＃39; onPaymentStatus＆＃39;为null

Answer 1

你需要引用jQuery函数之外的组件，因为const component = this; 的含义在其中发生了变化

component.onPaymentStatus()

然后致电

#include <iostream>
using namespace std;

int main(){
    long long int m, k;
    cin >> m >> k;
    while (cin.fail() || m < 0 || k < 0){
        cin.clear();
        cout << "please enter another input";
        cin >> m >> k;
    }

return 0;
}