Files
dewedev/node_modules/underscore/modules/countBy.js
dwindown 7f2dd5260f Initial commit: Developer Tools MVP with visual editor
- Complete React app with 7 developer tools
- JSON Tool with visual structured editor
- Serialize Tool with visual structured editor
- URL, Base64, CSV/JSON, Beautifier, Diff tools
- Responsive navigation with dropdown menu
- Dark/light mode toggle
- Mobile-responsive design with sticky header
- All tools working with copy/paste functionality
2025-08-02 09:31:26 +07:00

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JavaScript

import group from './_group.js';
import has from './_has.js';
// Counts instances of an object that group by a certain criterion. Pass
// either a string attribute to count by, or a function that returns the
// criterion.
export default group(function(result, value, key) {
if (has(result, key)) result[key]++; else result[key] = 1;
});