/opt/canhelp/node_modules/engine.io-client/build/esm
Edit: /opt/canhelp/node_modules/engine.io-client/build/esm/util.js (1845B)
import { globalThisShim as globalThis } from "./globals.node.js";
export function pick(obj, ...attr) {
return attr.reduce((acc, k) => {
if (obj.hasOwnProperty(k)) {
acc[k] = obj[k];
}
return acc;
}, {});
}
// Keep a reference to the real timeout functions so they can be used when overridden
const NATIVE_SET_TIMEOUT = globalThis.setTimeout;
const NATIVE_CLEAR_TIMEOUT = globalThis.clearTimeout;
export function installTimerFunctions(obj, opts) {
if (opts.useNativeTimers) {
obj.setTimeoutFn = NATIVE_SET_TIMEOUT.bind(globalThis);
obj.clearTimeoutFn = NATIVE_CLEAR_TIMEOUT.bind(globalThis);
}
else {
obj.setTimeoutFn = globalThis.setTimeout.bind(globalThis);
obj.clearTimeoutFn = globalThis.clearTimeout.bind(globalThis);
}
}
// base64 encoded buffers are about 33% bigger (https://en.wikipedia.org/wiki/Base64)
const BASE64_OVERHEAD = 1.33;
// we could also have used `new Blob([obj]).size`, but it isn't supported in IE9
export function byteLength(obj) {
if (typeof obj === "string") {
return utf8Length(obj);
}
// arraybuffer or blob
return Math.ceil((obj.byteLength || obj.size) * BASE64_OVERHEAD);
}
function utf8Length(str) {
let c = 0, length = 0;
for (let i = 0, l = str.length; i < l; i++) {
c = str.charCodeAt(i);
if (c < 0x80) {
length += 1;
}
else if (c < 0x800) {
length += 2;
}
else if (c < 0xd800 || c >= 0xe000) {
length += 3;
}
else {
i++;
length += 4;
}
}
return length;
}
/**
* Generates a random 8-characters string.
*/
export function randomString() {
return (Date.now().toString(36).substring(3) +
Math.random().toString(36).substring(2, 5));
}