fix gameCalc and install new package

Author: root

Makefile

@@ -4,6 +4,8 @@ brain-games:
 	node bin/brain-games.js
 brain-even:
 	node bin/brain-even.js
+brain-calc:
+	node bin/brain-calc.js
 publish:
 	npm publish --dry-run
 lint:

bin/brain-calc.js

@@ -6,7 +6,8 @@
   "main": "index.js",
   "bin": {
     "brain-games": "bin/brain-games.js",
-    "brain-even": "bin/brain-even.js"
+    "brain-even": "bin/brain-even.js",
+    "brain-calc": "bin/brain-calc.js"
   },
   "scripts": {
     "test": "echo \"Error: no test specified\" && exit 1"

package-lock.json

@@ -9,7 +9,7 @@ const operations = ()=>{
     const ops = ["+", "-", "*"];
     const minIndex = 0;
     const MaxIndex = ops.length-1;
-    const randomOp = ops(getRandomNum(minIndex, MaxIndex));
+    const randomOp = ops[getRandomNum(minIndex, MaxIndex)];
     return `${firstNum}${randomOp}${secondNum}`
 }
 const StartValueOPS = (exs)=>{
@@ -27,7 +27,7 @@ const StartValueOPS = (exs)=>{
         case '*': result = num1 * num2;
             break;
         default: throw new Error(`Unknown order state: '${exs}'!`);
-  }
+    }
 
   return result;
 }