A developer needs to install the uglify-js command-line tool on a Linux server to minify JavaScript files. The tool must be accessible from any directory in the user's shell. Which of the following commands should be used to accomplish this?
npm install -g uglify-js
apt install uglify-js
npm install uglify-js
npm add global uglify-js
The correct command is npm install -g uglify-js. The -g (or --global) flag instructs npm to install the package in a global location, making its binaries available in the system's PATH for execution from any directory. Installing without the -g flag would place the package in a local node_modules directory, and its binary would not be in the user's PATH by default. The apt command is used for system-level Debian/Ubuntu packages, not for installing packages from the npm registry. npm add is an alias for npm install, but global uglify-js is not the correct syntax for a global installation.
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