Initial commit

Author: ericelliott

package-lock.json

@@ -0,0 +1,20 @@
+{
+  "name": "closures",
+  "version": "1.0.0",
+  "description": "Closures explained",
+  "main": "index.js",
+  "scripts": {
+    "test": "node -r @std/esm source/test.js",
+    "watch": "watch 'clear && npm run -s test' source"
+  },
+  "author": "Eric Elliott",
+  "license": "MIT",
+  "devDependencies": {
+    "riteway": "2.0.3",
+    "watch": "1.0.2"
+  },
+  "@std/esm": "cjs",
+  "dependencies": {
+    "@std/esm": "0.19.7"
+  }
+}

package.json

@@ -0,0 +1,29 @@
+// What is a closure?
+
+/*
+A function bundled with its lexical environment.
+*/
+
+
+/*
+Data privacy
+
+Encapsulation.
+Message passing. (calling methods)
+*/
+const safe = secret => ({
+  getSecret: () => secret
+});
+
+
+const fun = secret => () => secret;
+
+// curried function
+const add2 = a => b => a + b;
+
+// partial applications of add2
+const inc = add2(1);
+const inc10 = add2(10);
+const inc20 = add2(20);
+
+export {safe, fun, add2, inc, inc10, inc20 };