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Showing content from https://www.electronjs.org/docs/latest/api/command-line below:

Class: CommandLine | Electron

Manipulate the command line arguments for your app that Chromium reads

Process: Main
This class is not exported from the 'electron' module. It is only available as a return value of other methods in the Electron API.

The following example shows how to check if the --disable-gpu flag is set.

const { app } = require('electron')
app.commandLine.hasSwitch('disable-gpu')

For more information on what kinds of flags and switches you can use, check out the Command Line Switches document.

• switch string - A command-line switch, without the leading --.
• value string (optional) - A value for the given switch.

Append a switch (with optional value) to Chromium's command line.

note

This will not affect process.argv. The intended usage of this function is to control Chromium's behavior.

const { app } = require('electron')

app.commandLine.appendSwitch('remote-debugging-port', '8315')

• value string - The argument to append to the command line.

Append an argument to Chromium's command line. The argument will be quoted correctly. Switches will precede arguments regardless of appending order.

If you're appending an argument like --switch=value, consider using appendSwitch('switch', 'value') instead.

const { app } = require('electron')

app.commandLine.appendArgument('--enable-experimental-web-platform-features')

note

This will not affect process.argv. The intended usage of this function is to control Chromium's behavior.

• switch string - A command-line switch.

Returns boolean - Whether the command-line switch is present.

const { app } = require('electron')

app.commandLine.appendSwitch('remote-debugging-port', '8315')
const hasPort = app.commandLine.hasSwitch('remote-debugging-port')
console.log(hasPort) 

• switch string - A command-line switch.

Returns string - The command-line switch value.

This function is meant to obtain Chromium command line switches. It is not meant to be used for application-specific command line arguments. For the latter, please use process.argv.

const { app } = require('electron')

app.commandLine.appendSwitch('remote-debugging-port', '8315')
const portValue = app.commandLine.getSwitchValue('remote-debugging-port')
console.log(portValue) 

note

When the switch is not present or has no value, it returns empty string.

• switch string - A command-line switch.

Removes the specified switch from Chromium's command line.

const { app } = require('electron')

app.commandLine.appendSwitch('remote-debugging-port', '8315')
console.log(app.commandLine.hasSwitch('remote-debugging-port')) 

app.commandLine.removeSwitch('remote-debugging-port')
console.log(app.commandLine.hasSwitch('remote-debugging-port')) 

note

This will not affect process.argv. The intended usage of this function is to control Chromium's behavior.

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