[wp-trac] [WordPress Trac] #43733: Replace Underscores.js with Lodash.js

[WordPress Trac]

#43733: Replace Underscores.js with Lodash.js
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 Reporter:  ChopinBach          |      Owner:
     Type:  enhancement         |     Status:  new
 Priority:  normal              |  Milestone:  Awaiting Review
Component:  External Libraries  |    Version:
 Severity:  normal              |   Keywords:
  Focuses:                      |
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 Should we replace Underscores.js with Lodash.js?

 [https://wordpress.slack.com/archives/C5UNMSU4R/p1523367735000195
 Discussed in Slack today (April 10th, 2018)].

 It was suggested for converting WP Core to lodash,
 [https://github.com/facebook/jscodeshift jscodeshift] could be leveraged.

 Here is a list of [https://github.com/lodash/lodash/wiki/Migrating API
 pairings between lodash and underscores].

 Concerns:

 Lodash 5.0 is set to have some
 [https://github.com/lodash/lodash/wiki/Roadmap backwards incompatible
 changes] that could make the migration awkward.

 General backwards compatibility concerns as well. How do we want to handle
 Backwards Compat? Most likely only core will be changed, and a migration
 path/tool will be offered out to theme/plugin authors.

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Ticket URL: <https://core.trac.wordpress.org/ticket/43733>
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