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API Documentation
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Review the build differences & pick the build that’s right for you.

Modern build (minified)
For new environments like Chrome, Firefox, IE ≥ 9, & Safari ≥ 5.1
Compatibility build (minified)
For new & old environments like IE ≤ 8 & PhantomJS
Underscore build (minified)
A drop-in replacement for Underscore v1.5.2
CDN copies are available on cdnjs & jsDelivr.
Create custom builds with only the features you need.
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Check out our unit tests, benchmarks, changelog, roadmap, as well as community created podcasts, posts, & videos.

Installation