Added lambda equivalents

Author: tshemsedinov

JavaScript/1-closure.js

@@ -4,11 +4,15 @@ const log = function(base, n) {
   return Math.log(n) / Math.log(base);
 };
 
+// const log = (base, n) => Math.log(n) / Math.log(base);
+
 function createLog(base) {
   return function(n) {
     return log(base, n);
   };
 }
 
+// const createLog = (base) => (n) => log(base, n);
+
 const lg = createLog(10);
 const ln = createLog(Math.E);

JavaScript/2-lambda.js

@@ -4,5 +4,7 @@ const log = function(base, n) {
   return Math.log(n) / Math.log(base);
 };
 
+// const log = (base, n) => Math.log(n) / Math.log(base);
+
 const lg = n => log(10, n);
 const ln = n => log(Math.E, n);

JavaScript/3-bind.js

@@ -4,5 +4,7 @@ const log = function(base, n) {
   return Math.log(n) / Math.log(base);
 };
 
+// const log = (base, n) => Math.log(n) / Math.log(base);
+
 const lg = log.bind(null, 10);
 const ln = log.bind(null, Math.E);

JavaScript/4-curry.js

@@ -4,13 +4,16 @@ const sum3 = function(a, b, c) {
   return a + b + c;
 };
 
+// const sum3 = (a, b, c) => (a + b + c);
+
 function curry(fn, x) {
   return function(...args) {
-    args.push(x);
-    return fn(...args);
+    return fn(x, ...args);
   };
 }
 
+// const curry = (fn, x) => (...args) => fn(x, ...args);
+
 const f1 = curry(sum3, 10);
 const f2 = curry(f1, 5);
 const y = f2(1);