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Commit1f5971e

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init: lesson 1 complete
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‎.gitignore‎

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node_modules

‎CHANGELOG.md‎

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#Change Log
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All notable changes to this project will be documented in this file.
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This project adheres to[Semantic Versioning](http://semver.org/).
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##[0.1.0]
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- First release

‎README.md‎

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#ES2015
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Practice refactoring with ES2015 features.
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##CodeRoad
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CodeRoad is an open-sourced interactive tutorial platform for the Atom Editor. Learn more at[CodeRoad.io](http://coderoad.io).
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##Setup
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* install the tutorial package
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`npm install --save coderoad-es2015`
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* install and run the[atom-coderoad](https://github.com/coderoad/atom-coderoad) plugin
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##Outline
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###Declaring Variables
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Using`let` &`const`.
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#####Let
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`let` allows you to declare variables that are limited in scope to the block, statement, or expression on which it is used.
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This is unlike the`var` keyword, which defines a variable globally, or locally to an entire function regardless of block scope.
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```js
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varglobal=true;
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let blockScoped=true;
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```
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#####Const
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Writing basic functions continued.
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We'll write two more basic functions, this time without any help.

‎coderoad.json‎

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{
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"info": {
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"title":"ES2015",
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"description":"Practice refactoring with ES2015 features."
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},
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"chapters": [
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{
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"title":"Declaring Variables",
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"description":"Using `let` & `const`.",
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"pages": [
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{
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"title":"Let",
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"description":"`let` allows you to declare variables that are limited in scope to the block, statement, or expression on which it is used.\n\nThis is unlike the `var` keyword, which defines a variable globally, or locally to an entire function regardless of block scope.\n\n```js\nvar global = true;\nlet blockScoped = true;\n```",
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"tasks": [
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{
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"description":"Run the `varTest` function and look in the console.",
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"tests": [
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"1/01/01"
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],
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"hints": [
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"Click\"SAVE\". ⌘ + S on Mac, ctrl + S on Windows"
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],
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"actions": [
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"open('let.js')",
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"set('// call `varTest()`\nfunction varTest() {\n\tvar x = 1;\n\tif (true) {\n\t\tvar x = 2;\n\t\tconsole.log(x);\n\t}\n\tconsole.log(x);\n}\nvarTest();\n\n')"
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]
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},
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{
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"description":"Change `var` to `let` and run the `letTest` function. Don't forget to look in the console.",
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"tests": [
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"1/01/02"
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],
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"actions": [
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"insert('\n// use `let` and call `letTest()`\nfunction letTest() {\n\tvar x = 3;\n\tif (true) {\n\t\tvar x = 4;\n\t\tconsole.log(x);\n\t}\n\tconsole.log(x);\n}\nletTest();\n\n')"
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]
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},
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{
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"description":"fix the for loop to log numbers from 1 to 5",
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"tests": [
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"1/01/03"
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],
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"actions": [
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"insert('\n// log numbers from 1 to 5\nfor (var i = 1; i <= 5 ; i++ ) {\n setTimeout(function() {\n console.log(i);\n })\n}\n// 6 6 6 6 6\n\n')"
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]
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}
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],
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"onPageComplete":"Great! Now you that you have an idea of how `let` works, continue to look at declaring variables with `const`."
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},
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{
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"title":"Const",
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"description":"Writing basic functions continued.\n\nWe'll write two more basic functions, this time without any help.",
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"tasks": [
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{
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"description":"write a function `divideOne` divides a number by 1",
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"tests": [
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"1/02/01"
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],
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"actions": [
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"open('page-02.js')",
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"set('// divideOne\nfunction divideOne(x) {\n return ::>\n}\n')"
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]
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},
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{
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"description":"write a function `mutiplyone` that multiplies a number by 1",
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"tests": [
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"1/02/02"
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],
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"actions": [
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"insert('\n// multiplyOne\nfunction multiplyOne(x) {\n return ::>\n}\n')"
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]
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}
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]
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}
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]
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}
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]
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}

‎package.json‎

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{
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"name":"coderoad-es2015",
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"version":"0.1.0",
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"description":"Coderoad tutorial",
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"author":"Name <email> (site)",
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"contributors": [],
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"main":"coderoad.json",
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"files": [
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"coderoad.json",
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"tutorial"
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],
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"keywords": [
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"coderoad",
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"tutorial"
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],
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"engines": {
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"node":">=0.10.3"
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},
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"dependencies": {
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"mocha-coderoad":"^0.6.0",
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"chai-spies":"0.7.1",
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"chai":"3.5.0"
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},
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"license":"MIT",
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"config": {
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"dir":"tutorial",
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"runner":"mocha-coderoad",
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"testSuffix":".spec.js"
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}
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}

‎tutorial/1/01/01.spec.js‎

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'use strict';
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varchai=require('chai');
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varspies=require('chai-spies');
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varexpect=chai.expect;
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chai.use(spies);
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varspy=chai.spy.on(console,'log');
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/// load('let.js')
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describe('01 varTest',function(){
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it('doesn\'t exist',function(){
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expect(varTest).to.be.defined;
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});
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it('hasn\'t been called',function(){
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expect(spy.__spy.calls[0][0]).to.equal(2);
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expect(spy.__spy.calls[1][0]).to.equal(2);
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});
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});

‎tutorial/1/01/02.spec.js‎

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describe('02 letTest',function(){
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it('doesn\'t exist',function(){
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expect(letTest).to.be.defined;
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});
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it('should use `let` instead of `var`',function(){
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console.log('spy',spy);
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expect(spy).to.have.been.called.with(4);
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});
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it('isn\'t calling 4 & 3',function(){
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expect(spy.__spy.calls[2][0]).to.equal(4);
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expect(spy.__spy.calls[3][0]).to.equal(3);
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});
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});

‎tutorial/1/01/03.spec.js‎

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describe('03 the for loop',function(){
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it('isn\'t logging from 1 to 5',function(){
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expect(spy.__spy.calls[4][0]).to.equal(1);
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expect(spy.__spy.calls[8][0]).to.equal(5);
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});
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});

‎tutorial/1/01/let.md‎

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###Let
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`let` allows you to declare variables that are limited in scope to the block, statement, or expression on which it is used.
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This is unlike the`var` keyword, which defines a variable globally, or locally to an entire function regardless of block scope.
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```js
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varglobal=true;
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let blockScoped=true;
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```
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+ Run the`varTest` function and look in the console.
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@test('1/01/01')
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@hint('Click "SAVE". ⌘ + S on Mac, ctrl + S on Windows')
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@action(open('let.js'))
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@action(set(
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```
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// call `varTest()`
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function varTest() {
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var x = 1;
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if (true) {
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var x = 2;
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console.log(x);
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}
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console.log(x);
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}
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varTest();
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```
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))
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+ Change`var` to`let` and run the`letTest` function. Don't forget to look in the console.
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@test('1/01/02')
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@action(insert(
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```
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// use `let` and call `letTest()`
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function letTest() {
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var x = 3;
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if (true) {
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var x = 4;
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console.log(x);
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}
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console.log(x);
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}
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letTest();
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```
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))
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+ fix the for loop to log numbers from 1 to 5
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@test('1/01/03')
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@action(insert(
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```
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// log numbers from 1 to 5
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for (var i = 1; i <= 5 ; i++ ) {
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setTimeout(function() {
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console.log(i);
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})
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}
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// 6 6 6 6 6
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```
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))
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@onPageComplete('Great! Now you that you have an idea of how`let` works, continue to look at declaring variables with`const`.')

‎tutorial/1/02/01.spec.js‎

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varexpect=require('chai').expect;
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// load('page-02.js')
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describe('01 divideOne',function(){
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it('doesn\'t exist',function(){
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expect(divideOne).to.be.defined;
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});
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it('should take a parameter',function(){
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expect(divideOne).to.have.length(1);
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});
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it('doesn\'t output a number',function(){
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expect(divideOne(1)).to.be.a('number');
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});
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it('returns the same number',function(){
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expect(divideOne(1)).to.equal(1);
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expect(divideOne(10)).to.equal(10);
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});
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});

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