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lib.js
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lib.js
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export default {
now: function(){
return parseInt(Date.now() / 1000);
},
question: async function (q, v) {
if (!v) {
return prompt(q);
}
for (; ;) {
var s = prompt(q);
if (!s) {
continue;
}
if (typeof v === "function") {
if (await v(s)) {
return s;
}
continue;
}
if (v.test(s)) {
return s;
}
}
},
stdin: async function() {
var reader = (await Bun.stdin.stream()).getReader();
var l = [];
for (; true;) {
var { done, value } = await reader.read();
if (value) {
l.push(value);
}
if (done) {
break;
}
}
var b = new Uint8Array(l.reduce((v, a) => a.length + v, 0));
var i = 0;
l.forEach(v => {
b.set(v, i);
i += v.length;
});
return new TextDecoder().decode(b);
},
retry: async function(f, delay, times) {
var i = 0;
for (; true; i++) {
try {
return await f();
} catch (e) {
if (i < times) {
if (delay) {
await Bun.sleep(delay);
}
continue;
}
throw e;
}
}
},
select: async function (question, anwseraction) {
for (; ;) {
var i = prompt(anwseraction.map((v, i) => `${i + 1}: ${v.anwser}`).join("\n") + `\n${question}`);
i = parseInt(i);
if (isNaN(i) || i < 1 || i > anwseraction.length) {
continue;
}
break;
}
await anwseraction[i - 1].action();
},
go: function(js, args) {
return new Promise((resolve, reject) => {
var blob = new Blob(
[
js,
],
{
type: "application/javascript",
},
);
var url = URL.createObjectURL(blob);
var worker = new Worker(url);
worker.postMessage(args);
worker.onmessage = event => {
worker.terminate();
resolve(event.data)
};
});
},
setImmediatePromise: function (){
return new Promise((resolve) => {
setImmediate(() => resolve());
});
},
// async lock, js lock, js mutex, js sync, js queue
// var sync = new Sync();
// await sync.atomic(async () => {});
Sync: function() {
var p = Promise.resolve();
this.atomic = (f) => {
p = new Promise((resolve, reject) => {
p.then(() => {
f()
.then((v) => resolve(v))
.catch((v) => reject(v));
}).catch((e) => {
f()
.then((v) => resolve(v))
.catch((v) => reject(v));
});
});
return p;
};
},
read_url: async function (url) {
var res = await fetch(url);
if (!res.ok) {
throw res.status + ": " + (await res.text());
}
return await res.text();
},
}