Chrome 中用于重复提取网址的代码段不起作用

Question

我可以在Chrome控制台中使用此代码向localhost上的URL发出发布请求：

fetch("http://localhost:50014/api/myapi/", {"credentials":"omit","headers":{"accept":"*/*","accept-language":"en-GB,en-US;q=0.9,en;q=0.8","cache-control":"no-cache","content-type":"application/json","pragma":"no-cache","sec-fetch-mode":"cors","sec-fetch-site":"cross-site","x-api-key":"abc123"},"referrerPolicy":"no-referrer","body":"{"nodeIds":["ABC123"]}","method":"POST","mode":"cors"});

我在开发人员工具中将此代码用作Chrome"片段"，以尝试重复发出发布请求，出于某些测试目的，我试图识别错误：

while(1==1) {
fetch("http://localhost:50014/api/myapi/", {"credentials":"omit","headers":{"accept":"*/*","accept-language":"en-GB,en-US;q=0.9,en;q=0.8","cache-control":"no-cache","content-type":"application/json","pragma":"no-cache","sec-fetch-mode":"cors","sec-fetch-site":"cross-site","x-api-key":"abc123"},"referrerPolicy":"no-referrer","body":"{"nodeIds":["ABC123"]}","method":"POST","mode":"cors"});
setTimeout(() => {  console.log("waiting"); }, 1000);
}

但是我从未看到 POST 请求生效，控制台中没有任何内容。为什么？

更新

谢谢@Jaromanda X。我更新到这个，但它仍然没有运行。为什么？

while(1==1){
callApi();
sleep(5000);
}
function callApi() {
fetch("http://localhost:50014/api/myapi/", {"credentials":"omit","headers":{"accept":"*/*","accept-language":"en-GB,en-US;q=0.9,en;q=0.8","cache-control":"no-cache","content-type":"application/json","pragma":"no-cache","sec-fetch-mode":"cors","sec-fetch-site":"cross-site","x-api-key":"abc123"},"referrerPolicy":"no-referrer","body":"{"nodeIds":["ABC123"]}","method":"POST","mode":"cors"});
}
function sleep(milliseconds) {
var currentTime = new Date().getTime();
while (currentTime + milliseconds >= new Date().getTime()) {
}
}

Answer 1

如果你想在一段时间后重复发出请求，你可以使用 setInterval，如下所示：

setInterval(()=>{
fetch("http://localhost:50014/api/myapi/", {"credentials":"omit","headers":{"accept":"*/*","accept-language":"en-GB,en-US;q=0.9,en;q=0.8","cache-control":"no-cache","content-type":"application/json","pragma":"no-cache","sec-fetch-mode":"cors","sec-fetch-site":"cross-site","x-api-key":"abc123"},"referrerPolicy":"no-referrer","body":"{"nodeIds":["ABC123"]}","method":"POST","mode":"cors"});
},5000)