努力学习,Javascript。请原谅,如果这真的是我缺少的基本瘦身。
我正在尝试运行 node-fetch
到一个错误的 url,我希望它应该被捕获并记录我的适当消息。但是,当我通过节点运行此文件时,它给了我 Uncaught Error
const fetch = require('node-fetch');
fetch('http://api.icnd.com/jokes/random/10')
.then(response => {
response.json().then((data) => {
console.log(data)
});
}).
catch(error => {
console.log('There is some error');
});
(node:864) UnhandledPromiseRejectionWarning: FetchError: invalid json response body at http://api.icnd.com/jokes/random/10 reason: Unexpected token < in JSON at position 0
at /Users/raheel/code/js-tutorial/node_modules/node-fetch/lib/index.js:254:32
at <anonymous>
at process._tickCallback (internal/process/next_tick.js:118:7)
(node:864) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). (rejection id: 2)
(node:864) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.
最佳答案
因为您没有为 catch block 抛出特定错误来捕获。
const fetch = require('node-fetch');
fetch('http://api.icnd.com/jokes/random/10/api/1')
.then(response => {
if (response.ok) {
response.json().then((data) => {
console.log(data);
});
} else {
throw 'There is something wrong';
}
}).
catch(error => {
console.log(error);
});
关于javascript - 捕获 block 在节点提取中不起作用,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/49588215/