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Merge pull request #3766 from ltegman/fix/OOP-functional-lesson-cleanup-3760

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Cleanup OOP and Functional Programming Waypoints
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Ben McMahon
2015-10-16 23:40:50 +01:00
parent 81a78b6af9 009635dd31
commit b7ed38fc4d
1 changed files with 54 additions and 23 deletions
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75
seed/challenges/object-oriented-and-functional-programming.json
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@ -100,7 +100,7 @@
], ],
"tests":[ "tests":[
"assert(typeof(myBike.getSpeed)!=='undefined' && typeof(myBike.getSpeed) === 'function', 'message: The method getSpeed of myBike should be accessible outside the object.');", "assert(typeof(myBike.getSpeed)!=='undefined' && typeof(myBike.getSpeed) === 'function', 'message: The method getSpeed of myBike should be accessible outside the object.');",
"assert(typeof(myBike.speed) === 'undefined', 'message: <code>myBike.speed</code> should remain undefined.');", "assert(typeof(myBike.speed) === 'undefined', 'message: <code>myBike.speed</code> should be undefined.');",
"assert(typeof(myBike.addUnit) === 'undefined', 'message: <code>myBike.addUnit</code> should remain undefined.');" "assert(typeof(myBike.addUnit) === 'undefined', 'message: <code>myBike.addUnit</code> should remain undefined.');"
], ],
"challengeSeed":[ "challengeSeed":[
@ -147,10 +147,11 @@
"A function that creates objects is called a <code>constructor</code>.", "A function that creates objects is called a <code>constructor</code>.",
"You can create <code>instances</code> of an object using a <code>constructor</code>.", "You can create <code>instances</code> of an object using a <code>constructor</code>.",
"Each new <code>instance</code> of this object <code>inherits</code> all the <code>properties</code> and <code>methods</code> of your original object.", "Each new <code>instance</code> of this object <code>inherits</code> all the <code>properties</code> and <code>methods</code> of your original object.",
"Then you can give the instance new properties." "Once an <code>instance</code> has been created you can add <code>properties</code> to that <code>instance</code> individually.",
"Add an <code>engines</code> property with a number value to the <code>myCar</code> instance."
], ],
"tests":[ "tests":[
"assert((new Car()).wheels === 4, 'message: The property <code>wheels</code> should still be 4 like in the object constructor.');", "assert((new Car()).wheels === 4, 'message: The property <code>wheels</code> should still be 4 in the object constructor.');",
"assert(typeof((new Car()).engines) === 'undefined', 'message: There should not be a property <code>engines</code> in the object constructor.');", "assert(typeof((new Car()).engines) === 'undefined', 'message: There should not be a property <code>engines</code> in the object constructor.');",
"assert(myCar.wheels === 4, 'message: The property <code>wheels</code> of myCar should equal 4.');", "assert(myCar.wheels === 4, 'message: The property <code>wheels</code> of myCar should equal 4.');",
"assert(typeof(myCar.engines) === 'number', 'message: The property <code>engines</code> of myCar should be a number.');" "assert(typeof(myCar.engines) === 'number', 'message: The property <code>engines</code> of myCar should be a number.');"
@ -177,12 +178,12 @@
"title":"Iterate over Arrays with .map", "title":"Iterate over Arrays with .map",
"difficulty":0, "difficulty":0,
"description":[ "description":[
"The map method is one of the easiest ways to iterate through an array or object there is. Let's use it now.",
"<code>array = array.map(function(val){</code>", "<code>array = array.map(function(val){</code>",
"<code>&thinsp;&thinsp;return val+1;</code>", "<code>&thinsp;&thinsp;return val+1;</code>",
"<code>});</code>", "<code>});</code>",
"", "",
"The map method is one of the easiest ways to iterate through an array or object there is. Let's use it now.", "Use the map function to add 3 to every value in the variable <code>array</code>."
"Use the map function to add 3 to every value in the variable <code>array</code>"
], ],
"tests":[ "tests":[
"assert.deepEqual(array, [4,5,6,7,8], 'message: You should add three to each value in the array.');", "assert.deepEqual(array, [4,5,6,7,8], 'message: You should add three to each value in the array.');",
@ -199,6 +200,9 @@
"// Only change code above this line.", "// Only change code above this line.",
"(function() {return array;})();" "(function() {return array;})();"
], ],
"MDNlinks":[
"Array.map()"
],
"challengeType":1, "challengeType":1,
"type": "waypoint" "type": "waypoint"
}, },
@ -210,10 +214,11 @@
"Reduce can be useful for condensing an array of numbers into one value.", "Reduce can be useful for condensing an array of numbers into one value.",
"<code>var singleVal = array.reduce(function(previousVal, currentVal){</code>", "<code>var singleVal = array.reduce(function(previousVal, currentVal){</code>",
"<code>&thinsp;&thinsp;return previousVal+currentVal;</code>", "<code>&thinsp;&thinsp;return previousVal+currentVal;</code>",
"<code>});</code>" "<code>});</code>",
"Use the <code>reduce</code> function to sum all the values in <code>array</code> and assign it to <code>singleVal</code>."
], ],
"tests":[ "tests":[
"assert(singleVal == 30, 'message: <code>singleVal</code> should have been set to the result of your reduce operation.');", "assert(singleVal == 30, 'message: <code>singleVal</code> should be equal to the sum of all items in the <code>array</code> variable.');",
"assert(editor.getValue().match(/\\.reduce\\s*\\(/gi), 'message: You should have made use of the reduce method.');" "assert(editor.getValue().match(/\\.reduce\\s*\\(/gi), 'message: You should have made use of the reduce method.');"
], ],
"challengeSeed":[ "challengeSeed":[
@ -226,6 +231,9 @@
"// Only change code above this line.", "// Only change code above this line.",
"(function() {return singleVal;})();" "(function() {return singleVal;})();"
], ],
"MDNlinks":[
"Array.reduce()"
],
"challengeType":1, "challengeType":1,
"type": "waypoint" "type": "waypoint"
}, },
@ -234,7 +242,7 @@
"title":"Filter Arrays with .filter", "title":"Filter Arrays with .filter",
"difficulty":0, "difficulty":0,
"description":[ "description":[
"filter is a useful method that can filter out values that don't match a certain criteria", "Filter is a useful method that can filter out values that don't match a certain criteria",
"Let's remove all the values greater than five", "Let's remove all the values greater than five",
"<code>array = array.filter(function(val) {</code>", "<code>array = array.filter(function(val) {</code>",
"<code>&thinsp;&thinsp;return val <= 5;</code>", "<code>&thinsp;&thinsp;return val <= 5;</code>",
@ -254,6 +262,9 @@
" // Only change code above this line.", " // Only change code above this line.",
"(function() {return array;})();" "(function() {return array;})();"
], ],
"MDNlinks":[
"Array.filter()"
],
"challengeType":1, "challengeType":1,
"type": "waypoint" "type": "waypoint"
}, },
@ -262,14 +273,15 @@
"title": "Sort Arrays with .sort", "title": "Sort Arrays with .sort",
"difficulty":0, "difficulty":0,
"description":[ "description":[
"You can use the method sort to easily sort the values in the array alphabetically or numerically", "You can use the method <code>sort</code> to easily sort the values in the array alphabetically or numerically.",
"<code>var array = [1, 3, 2];</code>", "<code>var array = [1, 3, 2];</code>",
"<code>array = array.sort();</code>", "<code>array = array.sort();</code>",
"This will return <code>[1, 2, 3]</code>" "<code>array</code> is now <code>[1, 2, 3]</code>.",
"Use <code>sort</code> to sort <code>array</code> alphabetically."
], ],
"tests":[ "tests":[
"assert.deepEqual(array, ['alpha', 'beta', 'charlie'], 'message: You should have sorted the array alphabetically.');", "assert.deepEqual(array, ['alpha', 'beta', 'charlie'], 'message: You should have sorted the array alphabetically.');",
"assert(editor.getValue().match(/\\[\\'beta\\'\\,\\s\\'alpha\\'\\,\\s'charlie\\'\\];/gi), 'message: You should be sorting the array using sort.');", "assert(editor.getValue().match(/\\[\\'beta\\'\\,\\s\\'alpha\\'\\,\\s'charlie\\'\\];/gi), 'message: You should only be using <code>.sort</code> to modify the array.');",
"assert(editor.getValue().match(/\\.sort\\s*\\(\\)/gi), 'message: You should have made use of the sort method.');" "assert(editor.getValue().match(/\\.sort\\s*\\(\\)/gi), 'message: You should have made use of the sort method.');"
], ],
"challengeSeed":[ "challengeSeed":[
@ -281,6 +293,9 @@
" // Only change code above this line.", " // Only change code above this line.",
"(function() {return array;})();" "(function() {return array;})();"
], ],
"MDNlinks":[
"Array.sort()"
],
"challengeType":1, "challengeType":1,
"type": "waypoint" "type": "waypoint"
}, },
@ -288,12 +303,13 @@
"id": "cf1111c1c16feddfaeb2bdef", "id": "cf1111c1c16feddfaeb2bdef",
"title": "Reverse Arrays with .reverse", "title": "Reverse Arrays with .reverse",
"description": [ "description": [
"You can use the <code>.reverse()</code> function to reverse the contents of an array." "You can use the <code>reverse</code> function to reverse the contents of an array.",
"Add a line of code that uses <code>reverse</code> to reverse the <code>array</code> variable."
], ],
"tests": [ "tests": [
"assert.deepEqual(array, [7,6,5,4,3,2,1], 'message: You should reverse the array.');", "assert.deepEqual(array, [7,6,5,4,3,2,1], 'message: You should reverse the array.');",
"assert(editor.getValue().match(/\\.reverse\\s*\\(\\)/gi), 'message: You should use the reverse method.');", "assert(editor.getValue().match(/\\.reverse\\s*\\(\\)/gi), 'message: You should use the <code>reverse</code> method.');",
"assert(editor.getValue().match(/\\[1\\,2\\,3\\,4\\,5\\,6\\,7/gi), 'message: You should return <code>[7,6,5,4,3,2,1]</code>.');" "assert(editor.getValue().match(/\\[1\\,2\\,3\\,4\\,5\\,6\\,7/gi), 'message: You should only be using <code>revserse</code> to modify <code>array</code>.');"
], ],
"challengeSeed": [ "challengeSeed": [
"var array = [1,2,3,4,5,6,7];", "var array = [1,2,3,4,5,6,7];",
@ -304,6 +320,9 @@
" // Only change code above this line.", " // Only change code above this line.",
"(function() {return array;})();" "(function() {return array;})();"
], ],
"MDNlinks":[
"Array.reverse()"
],
"challengeType": 1, "challengeType": 1,
"type": "waypoint" "type": "waypoint"
}, },
@ -312,12 +331,13 @@
"title": "Concatenate Strings with .concat", "title": "Concatenate Strings with .concat",
"description": [ "description": [
"<code>.concat()</code> can be used to merge the contents of two arrays into one.", "<code>.concat()</code> can be used to merge the contents of two arrays into one.",
"<code>array = array.concat(otherArray);</code>" "<code>array = array.concat(otherArray);</code>",
"Use <code>.concat()</code> to concatenate <code>concatMe</code> onto the end of <code>array</code> and assign it back to array."
], ],
"tests": [ "tests": [
"assert.deepEqual(array, [1,2,3,4,5,6], 'You should concat the two arrays together.');", "assert.deepEqual(array, [1,2,3,4,5,6], 'message: You should concat the two arrays together.');",
"assert(editor.getValue().match(/\\.concat\\s*\\(/gi), 'message: You should be use the concat method to merge the two arrays.');", "assert(editor.getValue().match(/\\.concat\\s*\\(/gi), 'message: You should be using the <code>concat</code> method to merge the two arrays.');",
"assert(editor.getValue().match(/\\[1\\,2\\,3\\]/gi) && editor.getValue().match(/\\[4\\,5\\,6\\]/gi), 'message: You should only modify the two arrays without changing the origional ones.');" "assert(editor.getValue().match(/\\[1\\,2\\,3\\]/gi) && editor.getValue().match(/\\[4\\,5\\,6\\]/gi), 'message: You should only be using <code>concat</code> to modify the arrays.');"
], ],
"challengeSeed": [ "challengeSeed": [
"var array = [1,2,3];", "var array = [1,2,3];",
@ -330,6 +350,9 @@
"// Only change code above this line.", "// Only change code above this line.",
"(function() {return array;})();" "(function() {return array;})();"
], ],
"MDNlinks":[
"Array.concat()"
],
"challengeType": 1, "challengeType": 1,
"type": "waypoint" "type": "waypoint"
}, },
@ -339,8 +362,9 @@
"difficulty":0, "difficulty":0,
"description":[ "description":[
"You can use the <code>.split()</code> method to split a string into an array.", "You can use the <code>.split()</code> method to split a string into an array.",
"split uses the argument you give to to split the string.", "<code>.split()</code> uses the argument you pass in as a delimiter to determine which points the string should be split at.",
"<code>array = string.split(' ');</code>" "<code>var array = string.split(' ');</code>",
"Use <code>.split()</code> to create an array of words from <code>string</code> and assign it to <code>array</code>."
], ],
"tests":[ "tests":[
"assert(typeof(array) === 'object' && array.length === 5, 'message: You should split the string by its spaces.');", "assert(typeof(array) === 'object' && array.length === 5, 'message: You should split the string by its spaces.');",
@ -355,6 +379,9 @@
"// Only change code above this line.", "// Only change code above this line.",
"(function() {return array;})();" "(function() {return array;})();"
], ],
"MDNlinks":[
"String.split()"
],
"challengeType":1, "challengeType":1,
"type": "waypoint" "type": "waypoint"
}, },
@ -364,10 +391,11 @@
"difficulty":0, "difficulty":0,
"description":[ "description":[
"We can use the <code>.join()</code> method to join each element in an array into a string separated by whatever delimiter you provide as an argument to the join operation.", "We can use the <code>.join()</code> method to join each element in an array into a string separated by whatever delimiter you provide as an argument to the join operation.",
"<code>var joinMe = joinMe.join(\" \");</code>" "<code>var joinMe = joinMe.join(\" \");</code>",
"Use the <code>.join()</code> method to create a string from <code>joinMe</code> with spaces in between each element and assign it back to <code>joinMe</code>."
], ],
"tests":[ "tests":[
"assert(typeof(joinMe) === 'string' && joinMe === \"Split me into an array\", 'message: You should join the arrays by their spaces.');", "assert(typeof(joinMe) === 'string' && joinMe === \"Split me into an array\", 'message: You should join the elements of the array with spaces.');",
"assert(/\\.join\\(/gi, 'message: You should use of the join method on the array.');" "assert(/\\.join\\(/gi, 'message: You should use of the join method on the array.');"
], ],
"challengeSeed":[ "challengeSeed":[
@ -379,6 +407,9 @@
"// Only change code above this line.", "// Only change code above this line.",
"(function() {return joinMe;})();" "(function() {return joinMe;})();"
], ],
"MDNlinks":[
"Array.join()"
],
"challengeType":1, "challengeType":1,
"type": "waypoint" "type": "waypoint"
} }