Update CONTRIBUTING.md for new polyfills

This commit is contained in:
Guangcong Luo 2018-10-14 22:05:10 -05:00
parent 8133c8fd3f
commit 2aa13ed10c

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@ -19,9 +19,11 @@ This is very restrictive for 2018, but fortunately, with Babel 7 and polyfills,
We have polyfills for:
- `Array#includes` - Note: won't be able to find `NaN`s
- `Array.isArray`
- `String#startsWith`
- `String#endsWith`
- `String#includes`
- `String#trim`
- `Object.assign`
- `Object.create` - Note: second argument is unsupported