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@clack/core

Low-level primitives for building interactive command-line applications.

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Clack contains low-level primitives for implementing your own command-line applications.

Examples

create interactive prompts and menus in terminal apps$ import { prompt, select } from '@clack/core'; const answer = await prompt('What is your name?');

build custom CLI input forms with validation

$ import { text, confirm } from '@clack/core'; const name = await text({ message: 'Enter name', validate: (v) => v.length > 0 });

make dropdown selection menus for command line

$ import { select } from '@clack/core'; const choice = await select({ message: 'Pick one', options: [{value: 'a'}, {value: 'b'}] });

display progress bars and loading spinners$ import { spinner } from '@clack/core'; const s = spinner(); s.start('Processing...'); s.stop('Done!');

build styled terminal UI with colors and formatting$ import { note, outro, intro } from '@clack/core'; intro('Welcome'); note('Information'); outro('Finished');