Dylan Thomson Dylan-Thomson
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| function phi(table) { | |
| return (table[3] * table[0] - table[2] * table[1]) / | |
| Math.sqrt((table[2] + table[3]) * | |
| (table[0] + table[1]) * | |
| (table[1] + table[3]) * | |
| (table[0] + table[2])); | |
| } |
Dylan-Thomson
/ countChar.js
Created
June 5, 2017 17:56
CountChar - Eloquent JavaScript Chapter 3 Solution
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| function countChar(str, char) { | |
| var count = 0; | |
| for(var i = 0; i < str.length; i++) { | |
| if(str.charAt(i) === char) count++; | |
| } | |
| return count; | |
| } | |
| function countBs(str) { | |
| return countChar(str, "B"); |
Dylan-Thomson
/ isEven.js
Created
June 5, 2017 17:55
isEven - Eloquent JavaScript Chapter 3 Solution
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| function isEven(num) { | |
| if(num === 0) return true; | |
| else if(num === 1) return false; | |
| else if(num < 0) return isEven(-num); | |
| return isEven(num - 2); | |
| } |
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| function min(a, b) { | |
| if(a < b) return a; | |
| else return b; | |
| } |
Dylan-Thomson
/ chessBoard.js
Last active
June 5, 2017 17:42
ChessBoard - Eloquent JavaScript Chapter 2 Solution
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| function chessBoard(size) { | |
| var board = ""; | |
| for (var y = 0; y < size; y++) { | |
| for (var x = 0; x < size; x++) { | |
| if ((x + y) % 2 == 0) | |
| board += "#"; | |
| else | |
| board += " "; | |
| } | |
| board += "\n"; |
Dylan-Thomson
/ fizzBuzz.js
Created
June 5, 2017 17:18
FizzBuzz - Eloquent JavaScript Chapter 2 Solution
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| function fizzBuzz() { | |
| for (var n = 1; n <= 100; n++) { | |
| var output = ""; | |
| if (n % 3 == 0) | |
| output += "Fizz"; | |
| if (n % 5 == 0) | |
| output += "Buzz"; | |
| console.log(output || n); | |
| } | |
| } |
Dylan-Thomson
/ drawTriangle.js
Last active
June 5, 2017 17:17
Draw Triangle - Eloquent JavaScript Chapter 2 Solution
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| function drawTriangle() { | |
| for (var line = "#"; line.length < 8; line += "#") | |
| console.log(line); | |
| } | |
| //OUTPUT: | |
| //# | |
| //## | |
| //### | |
| //#### | |
| //##### |
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| function rot13(str) { | |
| return str.split('').map(function(char) { | |
| var charCode = char.charCodeAt(); | |
| if(charCode >= 65 && charCode <= 90) { | |
| charCode = (charCode - 65 + 13) % 26 + 65; | |
| } | |
| return String.fromCharCode(charCode); | |
| }).join(''); | |
| } |
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| function getIndexToIns(arr, num) { | |
| arr = arr.sort(function(a,b) { | |
| return a - b; | |
| }); | |
| for(var i = 0; i < arr.length; i++) { | |
| if(num <= arr[i]) { | |
| return i; | |
| } | |
| } | |
| return arr.length; |
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| function destroyer(arr) { | |
| var args = Array.prototype.slice.call(arguments); | |
| var result = args[0].filter(function(num) { | |
| if(!args.includes(num)) { | |
| return num; | |
| } | |
| }); | |
| return result; | |
| } |
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