build: drop support for Node 10

BREAKING CHANGE: drop support for Node 10

Author: jrolfs

.babelrc.json

@@ -4,7 +4,7 @@
       "@babel/preset-env",
       {
         "targets": {
-          "node": "10"
+          "node": "12"
         }
       }
     ]

package.json

@@ -3,7 +3,7 @@
   "version": "0.0.0-semantically-released",
   "description": "CLI toolbox for common scripts for JavaScript + TypeScript projects",
   "engines": {
-    "node": ">=10.18",
+    "node": ">=12",
     "npm": ">=6",
     "yarn": ">=1"
   },

src/index.js

@@ -2,20 +2,17 @@
 let shouldThrow = false
 
 try {
-  const [major, minor] = process.version
-    .slice(1)
-    .split('.')
-    .map(Number)
+  const [major] = process.version.slice(1).split('.').map(Number)
   shouldThrow =
     require(`${process.cwd()}/package.json`).name === '@hover/javascript' &&
-    (major < 10 || (major === 10 && minor < 18))
+    major < 12
 } catch (error) {
   // ignore
 }
 
 if (shouldThrow) {
   throw new Error(
-    'You must use Node version 10.18 or greater to run the scripts within @hover/javascript, because we dogfood the untranspiled version of the scripts.',
+    'You must use Node version 12 or greater to run the scripts within @hover/javascript, because we dogfood the untranspiled version of the scripts.',
   )
 }