Atom markers for non empty lines

atom-markers-performance.js

'use babel';

class Test {
  activate(state) {
    let self = this;
    atom.commands.add('atom-workspace', {
      'atom-markers-performance:toggle': () => {
        // just creating markers for all non-empty lines of the the active document
        let editor = atom.workspace.getActiveTextEditor();
        let lines = editor.getText().split('\n');
        let markers = [];
        for (let lineNum = 0, lineCount = lines.length; lineNum < lineCount; lineNum++) {
          if (lines[lineNum].length) {
            markers.push(editor.markBufferPosition([lineNum, 0], {
              persistent: false,
              maintainHistory: false
            }));
          }
        }

        console.log('Created ' + markers.length + ' markers, now try editing the sample.');
      }
    });
  }
}

export default new Test();