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Try this, looks for WOW64 (32-bit on 64-bit) or Win64 (native 64-bit) in the user-agent string. if (navigator.userAgent.indexOf("WOW64") != -1 || navigator.userAgent.indexOf("Win64") != -1 ){ alert("This is a 64 bit OS"); } else { alert("Not a 64 bit OS"); }
JavaScript library to detect Browser, Engine, OS, CPU, and Device type/model from User-Agent data with relatively small footprint (~17KB minified, ~6KB gzipped) that can be used either in browser (client-side) or node.js (server-side).
1 wrz 2024 · Syntax. js. let downloading = browser.downloads.download( . options // object ) Parameters. options. An object specifying what file you wish to download, and any other preferences you wish to set concerning the download. It can contain the following properties: allowHttpErrors Optional.
4 dni temu · Use the chrome.downloads API to programmatically initiate, monitor, manipulate, and search for downloads.
8 paź 2024 · Do you actually want to detect Firefox, as opposed to SeaMonkey, or Chrome as opposed to Chromium? Or do you actually want to see if the browser is using the Gecko or the WebKit rendering engine? If this is what you need, see further down the page. Most browsers set the name and version in the format BrowserName/VersionNumber. But as the name ...
15 lis 2023 · Warning: If you are using Chrome version 115 or newer, consult the Chrome for Testing availability dashboard. This page provides convenient JSON endpoints for specific ChromeDriver version downloading. For lower versions of Chrome, see below for the version of ChromeDriver that supports it.
26 sie 2008 · In versions of JavaScript prior to ECMAScript 5, the property named "undefined" on the global object was writeable, and therefore a simple check foo === undefined might behave unexpectedly if it had accidentally been redefined. In modern JavaScript, the property is read-only.
