First twelve OOP challenges ready to roll
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@ -123,7 +123,8 @@
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"difficulty":0,
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"description":[
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"",
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"Instantiation at it's most basic level is where you are creating a copy of an object from a template for use at a later time"
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"Instantiation at it's most basic level is where you are creating a copy of an object from a template for use at a later time",
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"The instance inherits all the properties and methods of the original Object"
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],
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"tests":[
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"assert((new Car()).wheels === 4, 'The property wheels should be four in the object constructor');",
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@ -145,48 +146,30 @@
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],
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"challengeType":1
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},
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{
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"id":"cf1111c1c15feddfaeb5bdef",
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"title":"Waypoint: Inheritance",
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"difficulty":0,
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"description":[
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""
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],
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"tests":[
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"assert(1==2, '');"
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],
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"challengeSeed":[
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"Under Construction"
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],
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"challengeType":1
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},
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{
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"id":"cf1111c1c15feddfaeb6bdef",
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"title":"Waypoint: Prototypical Inheritance",
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"difficulty":0,
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"description":[
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""
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],
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"tests":[
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"assert(1==2, '');"
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],
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"challengeSeed":[
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"Under Construction"
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],
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"challengeType":1
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},
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{
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"id":"cf1111c1c15feddfaeb7bdef",
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"title":"Waypoint: Using .map",
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"difficulty":0,
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"description":[
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""
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"",
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"<code>array = array.map(function(val){",
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" return(val+1);",
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"});</code>",
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"",
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"The map method is one of the easiest ways to iterate through an array or object there is. Let's use it now"
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],
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"tests":[
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"assert(1==2, '');"
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"assert.deepEqual(array, [4,5,6,7,8], 'You should have added three to each value in the array');",
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"assert(editor.getValue().match(/\\.map\\(/gi), 'You should be making use of the map method');",
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"assert(editor.getValue().match(/\\[1\\,2\\,3\\,4\\,5\\]/gi), 'You should only modify the array with .map');"
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],
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"challengeSeed":[
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"Under Construction"
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"//Use map to add three to each value in the array",
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"var array = [1,2,3,4,5];",
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"",
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"",
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"",
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"(function(){return(array);})();"
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],
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"challengeType":1
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},
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@ -195,13 +178,25 @@
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"title":"Waypoint: Using .reduce",
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"difficulty":0,
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"description":[
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""
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"",
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"Reduce can be useful for condensing and array or numbers into one value.",
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"",
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"<code>var singleVal = array.reduce(function(previousVal, currentVal){",
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" return(previousVal+currentVal);",
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"}</code>"
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],
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"tests":[
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"assert(1==2, '');"
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"assert(singleVal == 30, 'singleVal should have been set to the result of you reduce operation');",
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"assert(editor.getValue().match(/\\.reduce\\(/gi), 'You should have made use of the reduce method');"
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],
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"challengeSeed":[
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"Under Construction"
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"var array = [4,5,6,7,8];",
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"",
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"var singleVal = 0;",
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"",
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"",
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"",
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"(function(){return(singleVal);})()"
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],
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"challengeType":1
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},
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@ -210,13 +205,24 @@
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"title":"Waypoint: Using .filter",
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"difficulty":0,
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"description":[
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""
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"",
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"filter is a useful method that can filter out values that don't match a certain criteria",
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"Let's remove all the values less than six",
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"<code>array = array.filter(function(val){",
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" return(val<4);",
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"});</code>"
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],
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"tests":[
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"assert(1==2, '');"
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"assert.deepEqual(array, [1,2,3,4,5], 'You should have removed all the values from the array that are less than six');",
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"assert(editor.getValue().match(/array\\.filter\\(/gi), 'You should be using the filter method to remove the values from the array');",
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"assert(editor.getValue().match(/\\[1\\,2\\,3\\,4\\,5\\,6\\,7\\,8\\,9\\,10\\]/gi), 'You should only be using .filter to modify the contents of the array);"
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],
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"challengeSeed":[
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"Under Construction"
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"var array = [1,2,3,4,5,6,7,8,9,10];",
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"",
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"",
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"",
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"(function(){return(array);})();"
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],
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"challengeType":1
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},
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@ -225,13 +231,24 @@
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"title":"Waypoint: Using .sort",
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"difficulty":0,
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"description":[
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"",
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"You can use the method sort to easily sort the values in the array alphabetically or numerically",
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"<code>var array = [1,3,2];",
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"array = array.sort();</code>",
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"This will return [1, 2, 3]",
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""
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],
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"tests":[
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"assert(1==2, '');"
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"assert.deepEqual(array, ['alpha', 'beta', 'charlie'], 'You should have sorted the array alphabetically');",
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"assert(editor.getValue().match(/\\[\\'beta\\'\\,\\s\\'alpha\\'\\,\\s'charlie\\'\\];/gi), 'You should be sorting the array using sort');",
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"assert(editor.getValue().match(/\\.sort\\(\\)/gi), 'You should have made use of the sort method');"
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],
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"challengeSeed":[
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"Under Construction"
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"var array = ['beta', 'alpha', 'charlie'];",
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"",
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"",
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"",
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"(function(){return(array);})();"
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],
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"challengeType":1
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},
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@ -240,13 +257,20 @@
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"title": "Waypoint: Using .reverse",
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"difficulty": 0,
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"description": [
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""
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"",
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"You can use the reverse method to reverse the contents of an array"
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],
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"tests": [
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"assert(1==2, '');"
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"assert.deepEqual(array, [7,6,5,4,3,2,1], 'You should reverse the array');",
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"assert(editor.getValue().match(/\\.reverse\\(\\)/gi), '');",
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"assert(editor.getValue().match(/\\[1\\,2\\,3\\,4\\,5\\,6\\,7/gi), '');"
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],
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"challengeSeed": [
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"Under Construction"
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"var array = [1,2,3,4,5,6,7];",
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"",
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"",
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"",
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"(function(){return(array);})();"
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],
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"challengeType": 1
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},
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@ -255,15 +279,70 @@
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"title": "Waypoint: Using .concat",
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"difficulty": 0,
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"description": [
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""
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"",
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"Concat can be used to merge the contents of two arrays into one",
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"<code>array = array.concat(otherArray);</code>"
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],
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"tests": [
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"assert(1==2, '');"
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"assert.deepEqual(array, [1,2,3,4,5,6], 'You should concat the two arrays together');",
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"assert(editor.getValue().match(/\\.concat\\(/gi), 'You should be using the concat method to merge the two arrays');",
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"assert(editor.getValue().match(/\\[1\\,2\\,3\\]/gi) && editor.getValue().match(/\\[4\\,5\\,6\\]/gi), 'You should only modify the two arrays without changing the origional ones');"
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],
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"challengeSeed": [
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"Under Construction"
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"var array = [1,2,3];",
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"",
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"var concatMe = [4,5,6];",
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"",
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"",
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"",
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"(function(){return(array);})()"
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],
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"challengeType": 1
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},
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{
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"id":"cf1111c1c16feddfaeb4bdef",
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"title":"Waypoint: Using .split",
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"difficulty":0,
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"description":[
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"",
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"You can use the split method to split a string into an array",
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"split uses the argument you give to to split the string",
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"<code>array = string.split(' ');</code>"
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],
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"tests":[
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"assert(typeof(array) === 'object' && array.length === 5, 'You should have split the string by it\\'s spaces');",
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"assert(/\\.split\\(/gi, 'You should have made use of the split method on the string');"
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],
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"challengeSeed":[
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"var string = \"Split me into an array\";",
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"",
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"var array = string;",
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"",
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"(function(){return(array);})();"
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],
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"challengeType":1
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},
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{
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"id":"cf1111c1c16feddfaeb5bdef",
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"title":"Waypoint: Using .join",
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"difficulty":0,
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"description":[
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"",
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"We can use the join method to join each element in an array into a string separated by whatever delimiter you provide as an argument to the join operation",
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"<code>var joinMe = joinMe.join(\" \");</code>"
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],
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"tests":[
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"assert(typeof(joinMe) === 'string' && joinMe === \"Split me into an array\", 'You should have joined the arrays by it\\'s spaces');",
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"assert(/\\.join\\(/gi, 'You should have made use of the join method on the array');"
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],
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"challengeSeed":[
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"var joinMe = [\"Split\",\"me\",\"into\",\"an\",\"array\"];",
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"",
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"joinMe = joinMe;",
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"",
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"(function(){return(joinMe);})();"
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],
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"challengeType":1
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}
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]
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}
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