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Learning Node.js Development
book

Learning Node.js Development

by Andrew Mead
January 2018
Beginner
658 pages
13h 10m
English
Packt Publishing
Content preview from Learning Node.js Development

Adding the title

In the case of title, we would add the title on the left-hand side, and we would put our options object on the right-hand side. Inside the title, we're going to configure three properties describe, demand, and alias:

The describe property will be set equal to a string, and this is going to describe what is supposed to be passed in for the title. In this case, we can just use Title of note:

const argv = yargs  .command('add', 'Add a new note', {    title: {      describe: 'Title of note'    }  })  .help()  .argv;

Next we configure demand. It is going to tell yarg whether or not this argument is required. demand is false by default, we'll set it to true:

const argv = yargs  .command('add', 'Add a new note', {    title: { describe: 'Title of note', ...
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Publisher Resources

ISBN: 9781788395540Supplemental Content