runtime-shell/commands/clear.js

Some useful shell commands for runtime.js

'use strict';

const tty = require('runtimejs/js/core/tty');

module.exports = function(runtime, parseArgs) {
  runtime.shell.setCommand('clear', function(args, env, cb) {
    // TODO: print according to screen height.
    env.stdio.setColor('black');
    env.stdio.setBackgroundColor('black');
    for (var i = 0; i < 80; i++) {
      env.stdio.write('\n');
    }
    env.stdio.setColor('white');
    tty.moveTo(0, 0);
    cb(0);
  });
}