feat: Added a few new functions: 'getAppropriateEcmaVersionForBrowser…

…slist', 'browserslistSupportsEcmaVersion', and 'browsersWithSupportForEcmaVersion'

README.md

@@ -116,16 +116,39 @@ MIT © [Frederik Wessberg](https://github.com/wessberg)
 
 ##### `browsersWithSupportForFeatures (...features: string[]): string[]`
 
-Takes any amount of [caniuse](https://caniuse.com/) or [MDN](https://github.com/mdn/browser-compat-data) features and generates a browserslist that targets all browsers that support these features
+Takes any amount of [caniuse](https://caniuse.com/) or [MDN](https://github.com/mdn/browser-compat-data) features and generates a [browserslist](https://github.com/browserslist/browserslist) that targets all browsers that support these features
 
 ##### `browsersWithoutSupportForFeatures (...features: string[]): string[]`
 
-Takes any amount of [caniuse](https://caniuse.com/) or [MDN](https://github.com/mdn/browser-compat-data) features and generates a browserslist that targets all browsers that _doesn't_ support these features
+Takes any amount of [caniuse](https://caniuse.com/) or [MDN](https://github.com/mdn/browser-compat-data) features and generates a [browserslist](https://github.com/browserslist/browserslist) that targets all browsers that _doesn't_ support these features
+
+##### `browsersWithSupportForEcmaVersion (version: EcmaVersion): string[]`
+
+Generates a [browserslist](https://github.com/browserslist/browserslist) that targets all the browsers that support the given Ecma version.
+
+Possible Ecma versions are:
+
+- `es3`
+- `es5`
+- `es2015`
+- `es2016`
+- `es2017`
+- `es2018`
 
 ##### `browserslistSupportsFeatures (browserslist: string[], ...features: string[]): boolean`
 
 Returns true if the given [browserslist](https://github.com/browserslist/browserslist) supports all of the given [caniuse](https://caniuse.com/) or [MDN](https://github.com/mdn/browser-compat-data) features
 
+##### `browserslistSupportsEcmaVersion (browserslist: string[], version: EcmaVersion): boolean`
+
+Returns true if the given [browserslist](https://github.com/browserslist/browserslist) supports the given Ecma version.
+See [this section](#browserswithsupportforecmaversion-version-ecmaversion-string) for an overview of all supported Ecma versions.
+
+##### `getAppropriateEcmaVersionForBrowserslist (browserslist: string[]): EcmaVersion`
+
+Gets the Ecma version that is most appropriate for the given [browserslist](https://github.com/browserslist/browserslist).
+See [this section](#browserswithsupportforecmaversion-version-ecmaversion-string) for an overview of all supported Ecma versions.
+
 #### `matchBrowserslistOnUserAgent (userAgent: string, browserslist: string[]): boolean`
 
 Will check if the given user agent string matches the given browserslist and return true if so.

package.json

@@ -52,17 +52,17 @@
     "@wessberg/ts-config": "0.0.30",
     "ava": "^0.25.0",
     "conventional-changelog-cli": "^2.0.5",
-    "husky": "^1.0.0-rc.15",
+    "husky": "^1.1.1",
     "tslint": "^5.11.0",
-    "typescript": "^3.0.3"
+    "typescript": "^3.1.2"
   },
   "dependencies": {
     "@types/object-path": "^0.9.29",
     "@types/semver": "^5.5.0",
     "@types/ua-parser-js": "^0.7.32",
-    "browserslist": "^4.1.1",
-    "caniuse-lite": "^1.0.30000887",
-    "mdn-browser-compat-data": "0.0.51",
+    "browserslist": "^4.2.0",
+    "caniuse-lite": "^1.0.30000890",
+    "mdn-browser-compat-data": "0.0.53",
     "object-path": "^0.11.4",
     "semver": "^5.5.1",
     "tslib": "^1.9.3",