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Add requirement for add function to return boolean (#13404)

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Jamos Tay
2017-02-18 11:06:53 +08:00
committed by Quincy Larson
parent 81545959df
commit a0df8bbeeb
1 changed files with 5 additions and 2 deletions
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challenges/08-coding-interview-questions-and-take-home-assignments/coding-interview-data-structure-questions.json
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@ -230,7 +230,8 @@
"<blockquote>var set = new Object();<br>set.foo = true;<br>// See if foo exists in our set:<br>console.log(set.foo) // true</blockquote>", "<blockquote>var set = new Object();<br>set.foo = true;<br>// See if foo exists in our set:<br>console.log(set.foo) // true</blockquote>",
"In the next few exercises, we will build a full featured Set from scratch.", "In the next few exercises, we will build a full featured Set from scratch.",
"For this exercise, create a function that will add a value to our set collection as long as the value does not already exist in the set. For example:", "For this exercise, create a function that will add a value to our set collection as long as the value does not already exist in the set. For example:",
"<blockquote>this.add = function(element) {<br> //some code to add value to the set<br>}</blockquote>" "<blockquote>this.add = function(element) {<br> //some code to add value to the set<br>}</blockquote>",
"The function should return <code>true</code> if the value is successfully added and <code>false</code> otherwise."
], ],
"challengeSeed": [ "challengeSeed": [
"function Set() {", "function Set() {",
@ -250,7 +251,9 @@
], ],
"tests": [ "tests": [
"assert((function(){var test = new Set(); return (typeof test.add === 'function')}()), 'message: Your <code>Set</code> class should have a <code>add</code> method.');", "assert((function(){var test = new Set(); return (typeof test.add === 'function')}()), 'message: Your <code>Set</code> class should have a <code>add</code> method.');",
"assert((function(){var test = new Set(); test.add('a'); test.add('b'); test.add('a'); var vals = test.values(); console.log(vals); return (vals[0] === 'a' && vals[1] === 'b' && vals.length === 2)}()), 'message: Your <code>Set</code> should not add duplicate values.');" "assert((function(){var test = new Set(); test.add('a'); test.add('b'); test.add('a'); var vals = test.values(); console.log(vals); return (vals[0] === 'a' && vals[1] === 'b' && vals.length === 2)}()), 'message: Your <code>Set</code> should not add duplicate values.');",
"assert((function(){var test = new Set(); var result = test.add('a'); return (result != undefined) && (result === true);}()), 'message: Your <code>Set</code> should return <code>true</code> when a value has been successfully added.');",
"assert((function(){var test = new Set(); test.add('a'); var result = test.add('a'); return (result != undefined) && (result === false);}()), 'message: Your <code>Set</code> should return <code>false</code> when the user tries to add a duplicate value.');"
], ],
"type": "waypoint", "type": "waypoint",
"solutions": [], "solutions": [],