dependencies: merge performance

[vmarchaud]

Problem Summary

The merge module is slow, the cli that i'm building depend on it to render few lines, i'm seing a ~4x difference between Object.assign and merge :
Object.assign:

/home/vmarchaud/****/bin/pmp.js status  0,48s user 0,04s system 40% cpu 1,276 total

Merge:

/home/vmarchaud/****/bin/pmp.js status  2,06s user 0,06s system 78% cpu 2,696 total

Expected Result (screen shot if possible)

Actual Result (screen shot if possible)

Environment Information

• OS: Uubuntu 17.10

• Terminal Emulator:
  Vscode (xterm.js)

Steps to Reproduce

1. Have a CLI using tty-table
2. Replace Merge here by Object.assign
3. Profit

Conclusion

Would it be possible to use Object.assign when available ? I dont mind making a PR if needed

[vmarchaud]

Actually i made a PR : #34

[tecfu]

Merged #34

[tecfu]

Thanks @vmarchaud

[vmarchaud]

Happy to give back ! Thanks for your module too :)