diff --git a/modules/util/helpers.js b/modules/util/helpers.js index ef10528c5..55408151a 100644 --- a/modules/util/helpers.js +++ b/modules/util/helpers.js @@ -2,12 +2,13 @@ const logger = require("jitsi-meet-logger").getLogger(__filename); /** * Create deferred object. + * * @returns {{promise, resolve, reject}} */ -export function createDeferred () { - let deferred = {}; +export function createDeferred() { + const deferred = {}; - deferred.promise = new Promise(function (resolve, reject) { + deferred.promise = new Promise((resolve, reject) => { deferred.resolve = resolve; deferred.reject = reject; }); @@ -18,7 +19,7 @@ export function createDeferred () { /** * Reload page. */ -export function reload () { +export function reload() { window.location.reload(); } @@ -35,48 +36,41 @@ export function replace(url) { /** * Prints the error and reports it to the global error handler. + * * @param e {Error} the error * @param msg {string} [optional] the message printed in addition to the error */ -export function reportError (e, msg = "") { +export function reportError(e, msg = "") { logger.error(msg, e); - if(window.onerror) - window.onerror(msg, null, null, - null, e); + window.onerror && window.onerror(msg, null, null, null, e); } /** * Creates a debounced function that delays invoking func until after wait - * milliseconds have elapsed since the last time the debounced - * function was invoked + * milliseconds have elapsed since the last time the debounced function was + * invoked. + * * @param fn * @param wait * @param options * @returns {function(...[*])} */ export function debounce(fn, wait = 0, options = {}) { - let leading = options.leading || false; - let trailing = true; - let isCalled = false; - - if (typeof options.trailing !== 'undefined') { - trailing = options.trailing; - } + const leading = options.leading || false; + const trailing + = (typeof options.trailing === 'undefined') || options.trailing; + let called = false; return (...args) => { - if(!isCalled) { - if (leading) { - fn(...args); - } + if (!called) { + leading && fn(...args); setTimeout(() => { - isCalled = false; - if (trailing) { - fn(...args); - } + called = false; + trailing && fn(...args); }, wait); - isCalled = true; + called = true; } }; }