diff --git a/.eslintignore b/.eslintignore
new file mode 100644
index 0000000..05b1cf3
--- /dev/null
+++ b/.eslintignore
@@ -0,0 +1,5 @@
+**/node_modules/*
+**/vendor/*
+**/*.min.js
+**/coverage/*
+**/build/*
diff --git a/.eslintrc.json b/.eslintrc.json
new file mode 100644
index 0000000..840d336
--- /dev/null
+++ b/.eslintrc.json
@@ -0,0 +1,26 @@
+{
+  "env": {
+    "browser": true,
+    "node": true,
+    "commonjs": true,
+    "jest": true,
+    "es6": true
+  },
+  "globals": {
+    "err": true,
+    "req": true,
+    "res": true,
+    "next": true
+  },
+  "extends": "eslint:recommended",
+  "parserOptions": {
+    "sourceType": "module"
+  },
+  "rules": {
+    "no-console": "off",
+    "indent": [ "error", 2 ],
+    "quotes": ["error", "single", { "allowTemplateLiterals": true }],
+    "comma-dangle": ["error", "always-multiline"],
+    "semi": [ "error", "always" ]
+  }
+}
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..2c116a4
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,80 @@
+
+# Created by https://www.gitignore.io/api/node,linux
+
+### Linux ###
+*~
+
+# temporary files which can be created if a process still has a handle open of a deleted file
+.fuse_hidden*
+
+# KDE directory preferences
+.directory
+
+# Linux trash folder which might appear on any partition or disk
+.Trash-*
+
+# .nfs files are created when an open file is removed but is still being accessed
+.nfs*
+
+### Node ###
+# Logs
+logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+
+# Runtime data
+pids
+*.pid
+*.seed
+*.pid.lock
+
+# Directory for instrumented libs generated by jscoverage/JSCover
+lib-cov
+
+# Coverage directory used by tools like istanbul
+coverage
+
+# nyc test coverage
+.nyc_output
+
+# Grunt intermediate storage (http://gruntjs.com/creating-plugins#storing-task-files)
+.grunt
+
+# Bower dependency directory (https://bower.io/)
+bower_components
+
+# node-waf configuration
+.lock-wscript
+
+# Compiled binary addons (http://nodejs.org/api/addons.html)
+build/Release
+
+# Dependency directories
+node_modules/
+jspm_packages/
+
+# Typescript v1 declaration files
+typings/
+
+# Optional npm cache directory
+.npm
+
+# Optional eslint cache
+.eslintcache
+
+# Optional REPL history
+.node_repl_history
+
+# Output of 'npm pack'
+*.tgz
+
+# Yarn Integrity file
+.yarn-integrity
+
+# dotenv environment variables file
+.env
+
+
+# End of https://www.gitignore.io/api/node,linux
diff --git a/DIRECTIONS.md b/DIRECTIONS.md
new file mode 100644
index 0000000..70bd927
--- /dev/null
+++ b/DIRECTIONS.md
@@ -0,0 +1,48 @@
+![cf](https://i.imgur.com/7v5ASc8.png) 02: Tools and Context
+======
+
+## Submission Instructions
+* Work in a fork of this repository
+* Work in a branch on your fork
+* Write all of your code in a directory named `lab-` + `<your name>` **e.g.** `lab-susan`
+* Open a pull request to this repository
+* Submit on canvas a question and observation, how long you spent, and a link to your pull request
+
+## Configuration 
+Configure the root of your repository with the following files and directories. Thoughtfully name and organize any additional configuration or module files.
+* **README.md** - contains documentation
+* **.gitignore** - contains a [robust](http://gitignore.io) `.gitignore` file 
+* **.eslintrc** - contains the course linter configuration
+* **.eslintignore** - contains the course linter ignore configuration
+* **package.json** - contains npm package config
+  * create a `lint` script for running eslint
+  * create a `test` script for running tests
+* **lib/** - contains module definitions
+* **\_\_test\_\_/** - contains unit tests
+
+## Feature Tasks
+#### fp Module
+Create a NodeJS module in the lib/ directory named fp.js that exports an object. Create stand-alone `map`, `filter`, `reduce`, and `slice` functions using the `call` and `apply` function methods. Define each function using ES6 lexical arrow function syntax. 
+
+In each function error-check each parameter and throw an Error with a meaningful message if the function is invoked with invalid arguments. Do not use any third party libraries in the FP module.
+
+* `fp.map` and `fp.filter` should have the function signature `(callback, collection) => Array`
+* `fp.reduce` should have the function signature `(callback, initialState, collection) => data`
+* `fp.slice` should have the function signature `(begin, end, collection) => Array`
+
+## Testing
+#### FP Module Tests
+Create a NodeJS module in the \_\_test\_\_/ named fp.test.js that asserts the correctness of the fp module.  
+
+* Use TDD `describe` and `test` methods to define descriptive tests 
+* Each `test` callback should aim to test a small well defined feature of a function
+* Write tests to ensure the fp module functions correctly error-check parameters
+  * Assert that the correct errors are thrown with invalid arguments
+* Write tests to ensure the fp module functions returns the correct results when invoked with valid arguments
+
+##  Documentation
+In your README.md describe the exported values of each module you have defined. Every function description should include it's arity (expected number of parameters), the expected data for each parameters (data-type and limitations), and it's behavior (for both valid and invalid use). Feel free to write any additional information in your README.md.
+
+## Bonus 2pts
+* Create a second module fp-curry.js that is a refactored version of fp.js, where each function has curried arguments
+* Create a fp-curry.test.js that is a refactored version of fp.curry.js that tests fp-curry.js
diff --git a/README.md b/README.md
index 70bd927..0f68f75 100644
--- a/README.md
+++ b/README.md
@@ -1,48 +1,14 @@
-![cf](https://i.imgur.com/7v5ASc8.png) 02: Tools and Context
-======
-
-## Submission Instructions
-* Work in a fork of this repository
-* Work in a branch on your fork
-* Write all of your code in a directory named `lab-` + `<your name>` **e.g.** `lab-susan`
-* Open a pull request to this repository
-* Submit on canvas a question and observation, how long you spent, and a link to your pull request
-
-## Configuration 
-Configure the root of your repository with the following files and directories. Thoughtfully name and organize any additional configuration or module files.
-* **README.md** - contains documentation
-* **.gitignore** - contains a [robust](http://gitignore.io) `.gitignore` file 
-* **.eslintrc** - contains the course linter configuration
-* **.eslintignore** - contains the course linter ignore configuration
-* **package.json** - contains npm package config
-  * create a `lint` script for running eslint
-  * create a `test` script for running tests
-* **lib/** - contains module definitions
-* **\_\_test\_\_/** - contains unit tests
-
-## Feature Tasks
-#### fp Module
-Create a NodeJS module in the lib/ directory named fp.js that exports an object. Create stand-alone `map`, `filter`, `reduce`, and `slice` functions using the `call` and `apply` function methods. Define each function using ES6 lexical arrow function syntax. 
-
-In each function error-check each parameter and throw an Error with a meaningful message if the function is invoked with invalid arguments. Do not use any third party libraries in the FP module.
-
-* `fp.map` and `fp.filter` should have the function signature `(callback, collection) => Array`
-* `fp.reduce` should have the function signature `(callback, initialState, collection) => data`
-* `fp.slice` should have the function signature `(begin, end, collection) => Array`
-
-## Testing
-#### FP Module Tests
-Create a NodeJS module in the \_\_test\_\_/ named fp.test.js that asserts the correctness of the fp module.  
-
-* Use TDD `describe` and `test` methods to define descriptive tests 
-* Each `test` callback should aim to test a small well defined feature of a function
-* Write tests to ensure the fp module functions correctly error-check parameters
-  * Assert that the correct errors are thrown with invalid arguments
-* Write tests to ensure the fp module functions returns the correct results when invoked with valid arguments
-
-##  Documentation
-In your README.md describe the exported values of each module you have defined. Every function description should include it's arity (expected number of parameters), the expected data for each parameters (data-type and limitations), and it's behavior (for both valid and invalid use). Feel free to write any additional information in your README.md.
-
-## Bonus 2pts
-* Create a second module fp-curry.js that is a refactored version of fp.js, where each function has curried arguments
-* Create a fp-curry.test.js that is a refactored version of fp.curry.js that tests fp-curry.js
+# Lab 02
+
+## exports
+
+###fp
+fp exports four customized functions that affect arrays
+####fp.map
+takes in a callback function, and an array or array like object and returns an array of modified values. it also catches errors and returns a descriptive error message
+####fp.slice
+takes in an array or array like object, a begin, and an optional end and returns an array containing a subset of the original array. it also catches errors and returns a descriptive error message
+####fp.reduce
+takes in a callback function, an array or array like object and an inital value  and returns a value or string built out of the original array. it also catches errors and returns a descriptive error message
+####fp.filter
+takes in a callback function, and an array or array like object and returns an array of values that match the conditions. it also catches errors and returns a descriptive error message
diff --git a/__test__/fp.test.js b/__test__/fp.test.js
new file mode 100644
index 0000000..7f7f135
--- /dev/null
+++ b/__test__/fp.test.js
@@ -0,0 +1,185 @@
+'use strict';
+
+const fp = require('../lib/fp.js');
+
+describe('fp.js', () => {
+  describe('fp.reduce', () => {
+    // parameters are f(collection, callback, initialValue)
+    test('return value should be the sum of the collection', ()=>{
+      expect(fp.reduce(
+        (x, y) => x+y,
+        [1,2,3],
+        0)
+      ).toBe(6);
+    });
+    test('return value should be the product of the collection', ()=>{
+      expect(fp.reduce(
+        (x, y) => x*y,
+        [1,5,3],
+        1)
+      ).toBe(15);
+    });
+    test('an exception should be thrown if error', ()=>{
+      expect(
+        () => {
+          fp.reduce(
+            (x, y) => x+y,
+            ['1',2, null],
+            0);
+        }).toThrow();
+      expect(
+        () => {
+          fp.reduce(
+            (x, y) => x+y,
+            1,
+            0);
+        }).toThrow();
+      expect(
+        () => {
+          fp.reduce(
+            (x, y) => x+y,
+            [1,2,3],
+            'a');
+        }).toThrow();
+      expect(
+        () => {
+          fp.reduce(
+            'lets do this',
+            [1, 2, 3],
+            0);
+        }).toThrow();
+    });
+  });
+  describe('fp.map', () => {
+    // parameters are f(collection, callback)
+    test('return values should increment by two', ()=>{
+      expect(fp.map(
+        (x) => x+2,
+        [1,2,3]
+      ).toString()
+      ).toBe('3,4,5');
+    });
+    test('return values should double', ()=>{
+      expect(fp.map(
+        (x) => x*2,
+        [1,2,3]
+      ).toString()
+      ).toBe('2,4,6');
+    });
+    test('an exception should be thrown if error', ()=>{
+      expect(
+        () => {
+          fp.map(
+            (x) => x+2,
+            ['1',2, null],
+            0);
+        }).toThrow();
+      expect(
+        () => {
+          fp.map(
+            (x) => x+2,
+            1
+          );
+        }).toThrow();
+      expect(
+        () => {
+          fp.map(
+            'lets do this',
+            [1, 2, 3]
+          );
+        }).toThrow();
+    });
+  });
+  describe('fp.filter', () => {
+    // parameters are f(collection, callback)
+    test('return values should only have a length greater than 6', ()=>{
+      expect(fp.filter(
+        (password) => password.length > 6,
+        ['password','pass','1234']
+      ).toString()
+      ).toBe('password');
+    });
+    test('return values should be larger than 90', ()=>{
+      expect(fp.filter(
+        (grades) => grades > 90,
+        [95, 97.5, 81, 99, 23]
+      ).toString()
+      ).toBe('95,97.5,99');
+    });
+    test('an exception should be thrown if error', ()=>{
+      expect(
+        () => {
+          fp.filter(
+            (grades) => grades > 90,
+            ['kerry', 97.5, 'nicholas', 99, 23]
+          );
+        }).toThrow();
+      expect(
+        () => {
+          fp.filter(
+            (grades) => grades > 90,
+            99
+          );
+
+        }).toThrow();
+      expect(
+        () => {
+          fp.filter(
+            'greater than 90',
+            [1, 2, 3]
+          );
+        }).toThrow();
+    });
+  });
+  describe('fp.slice', () => {
+    // parameters are f(collection, begin, end)
+    test('return value should be the last three values', ()=>{
+      expect(fp.slice(
+        [1, 2, 3, 4, 5],
+        2
+      ).toString()
+      ).toBe('3,4,5');
+    });
+    test('return value should be the middle 3 values', ()=>{
+      expect(fp.slice(
+        [1, 2, 'three', 4, 5],
+        1,
+        4
+      ).toString()
+      ).toBe('2,three,4');
+    });2, 'three', 4;
+    test('an exception should be thrown if error', ()=>{
+      expect(
+        () => {
+          fp.slice(
+            [1, 2, 3, 4, 5],
+            5,
+            1
+          );
+        }).toThrow();
+      expect(
+        () => {
+          fp.slice(
+            [1, 2, 3, 4, 5],
+            'start',
+            1
+          );
+        }).toThrow();
+      expect(
+        () => {
+          fp.slice(
+            [1, 2, 3, 4, 5],
+            1,
+            'five'
+          );
+        }).toThrow();
+      expect(
+        () => {
+          fp.slice(
+            1,
+            1,
+            1);
+        }).toThrow();
+    });
+  });
+});
diff --git a/lib/fp.js b/lib/fp.js
new file mode 100644
index 0000000..cdd352e
--- /dev/null
+++ b/lib/fp.js
@@ -0,0 +1,60 @@
+'use strict';
+
+
+const fp = module.exports = {};
+
+fp.reduce = (callback, collection, initialValue) => {
+  //assumes that collection is an array like object, we should test for this
+  if(typeof callback !== 'function' ){
+    throw new TypeError('<callback> must be a function');
+  }
+  if(typeof collection !== 'object' ){
+    throw new TypeError('<collection> must be an array or array like object');
+  }
+  collection.forEach((x) => {if(typeof x !== 'number'){throw new TypeError('<collection> inputs must be numbers');}});
+  if(typeof initialValue !== 'number'){
+    console.log('callback');
+    throw new TypeError('<initialValue> must be a number');
+  }
+  return Array.prototype.reduce.call(collection, callback, initialValue);
+};
+
+fp.map = (callback, collection) => {
+  if(typeof callback !== 'function' ){
+    throw new TypeError('<callback> must be a function');
+  }
+  if(typeof collection !== 'object' ){
+    throw new TypeError('<collection> must be an array or array like object');
+  }
+  collection.forEach((x) => {if(typeof x !== 'number'){throw new TypeError('<collection> inputs must be numbers');}});
+  return Array.prototype.map.call(collection, callback);
+};
+
+fp.filter = (callback, collection) => {
+  if(typeof callback !== 'function' ){
+    throw new TypeError('<callback> must be a function');
+  }
+  if(typeof collection !== 'object' ){
+    throw new TypeError('<collection> must be an array or array like object');
+  }
+  for(let i=0; i<collection.length-1; i++){
+    if(typeof collection[i] !== typeof collection[i+1]){throw new TypeError('<collection> inputs must be of same type');}
+  }
+  return Array.prototype.filter.call(collection, callback);
+};
+
+fp.slice = (collection, begin, end) => {
+  if(!Number.isInteger(begin)){
+    throw new TypeError('begin must be an integer');
+  }
+  if(end && !Number.isInteger(end)){
+    throw new TypeError('end must be an integer or null');
+  }
+  if(typeof collection !== 'object' ){
+    throw new TypeError('<collection> must be an array or array like object');
+  }
+  if(begin >= collection.length || end >= collection.length+1){
+    throw new TypeError('<begin> and <end> must not be larger than the length of the <collection -1>');
+  }
+  return Array.prototype.slice.call(collection, begin, end);
+};
diff --git a/package.json b/package.json
new file mode 100644
index 0000000..967b293
--- /dev/null
+++ b/package.json
@@ -0,0 +1,20 @@
+{
+  "name": "call-bind-apply",
+  "version": "1.0.0",
+  "description": "##When to use exceptions",
+  "main": "index.js",
+  "dependencies": {
+    "uuid": "^3.1.0"
+  },
+  "devDependencies": {
+    "eslint": "^4.12.0",
+    "jest": "^21.2.1"
+  },
+  "scripts": {
+    "test": "jest -i --coverage",
+    "lint": "eslint ."
+
+  },
+  "author": "",
+  "license": "ISC"
+}