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The 'arch' npm package is a simple utility that allows you to detect the architecture of the processor on which the Node.js process is running. It can be used to determine whether the system is running on a 32-bit or a 64-bit architecture, which can be useful for conditional logic based on system architecture, such as choosing the correct binary to execute or the right dependency to install.
Detecting processor architecture
This feature allows you to detect the architecture of the processor. The 'arch()' function returns a string indicating the architecture, such as 'x64' for 64-bit or 'x86' for 32-bit systems.
"use strict";
const arch = require('arch');
console.log(arch()); // 'x64' or 'x86' depending on the system architecture
The 'os' package is a core Node.js module that provides operating system-related utility methods. It includes the 'os.arch()' method, which can be used to get the operating system CPU architecture, similar to what 'arch' provides. However, 'os' is more comprehensive as it offers additional information about the system, such as platform, release, and uptime.
The 'systeminformation' package provides detailed information about the system hardware and software. It includes functionality to determine the system architecture, but it goes much further by offering a wide range of system insights, such as CPU load, memory usage, disk layout, network interfaces, and more. It is more feature-rich compared to 'arch', which focuses solely on detecting the processor architecture.
os.arch()
for node and the browserThis module is used by WebTorrent Desktop to determine if the user is on a 32-bit vs. 64-bit operating system to offer the right app installer.
The os.arch()
method returns a string identifying the operating system CPU
architecture for which the Node.js binary was compiled. In the browser, the
operating system CPU architecture itself is returned, as opposed to merely the
architecture of the browser.
npm install arch
In the browser, there is no spec that defines where this information lives, so we
check all known locations including navigator.userAgent
, navigator.platform
,
and navigator.cpuClass
to make a best guess.
If there is no affirmative indication that the architecture is 64-bit, then 32-bit will be assumed. This makes this package perfect for determining what installer executable to offer to desktop app users. If there is ambiguity, then the user will get the 32-bit installer, which will work fine even for a user with a 64-bit OS.
var cpus = require('arch')
console.log(arch()) // always returns 'x64' or 'x86'
MIT. Copyright (c) Feross Aboukhadijeh.
FAQs
Better `os.arch()` for node and the browser -- detect OS architecture
The npm package arch receives a total of 6,788,472 weekly downloads. As such, arch popularity was classified as popular.
We found that arch demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 2 open source maintainers collaborating on the project.
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