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Deno 2.2 Improves Dependency Management and Expands Node.js Compatibility
Deno 2.2 enhances Node.js compatibility, improves dependency management, adds OpenTelemetry support, and expands linting and task automation for developers.
Library to parse commandline-args and options.
##Install
npm install arghandle
##Implementation Require this module into your project
var arghandle = require('arghandle'),
handle = new arghandle();
handle.process();
You can test this by running
node yourscript.js --help
This is a reserved keyword. This will show all the handelers that have been defined
###Defining custom argument handlers A handler object should be designed like the following:
{
keys: ['--port', '-P'], // e.g. node script.js [--port|-P] 8080
method: function (self) {
console.log(self.getNext()); // 8080
},
description: 'Set application listning port'
}
Their are three methods to append your argument handlers. ####Initially declaring the options
var handle = new arghandle({
// This defines the start point for arguments to get processed
startIndex: 5,
// This defines the custom argument handlers
definedArgs: [
{
keys: ['--yes-debug', '-D'],
method: function (self) {
appConfig.debug = true;
},
description: 'Set application to debug'
},
{
keys: ['--port', '-P'],
method: function (self) {
appConfig.port = self.getNext();
},
description: 'Set application listning port'
}
],
// This defines arguments passed by the command line
argv: process.argv
});
####Concating an array of handlers
var appConfig = {
debug: false,
port: 8080,
hostname: 'localhost'
};
handle.concat([
{
keys: ['--debug', '-D'],
method: function (self) {
appConfig.debug = true;
},
description: 'Set application to debug'
},
{
keys: ['--port', '-P'],
method: function (self) {
appConfig.port = self.getNext();
},
description: 'Set application listning port'
}
]);
####Appending a single handler
handle.push({
keys: ['--hostname', '-H'],
method: function (self) {
appConfig.hostname = self.getNext();
},
description: 'Set application listning hostname'
});
####Defining the start position for arguments This is declared in the initial method. This is done as follows...
var handle = new arghandle({
startIndex: 2
});
###Processing the arguments This is done by calling the method as follows...
handle.process(process.argv); // if argv is not declared in the initial method
handle.process(); // if argv was included in the initial method
This will return false if an undefined argument is sent
FAQs
library to parse commandline-args and options.
We found that arghandle demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
Did you know?
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