Created
April 16, 2017 23:13
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Find unique elements in json
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| var processedData; | |
| window.onload = function(){ | |
| var data = [{ | |
| "Name": "Jacob", | |
| "Gender": "Male", | |
| "City": "Newyork", | |
| "State": "Newyork" | |
| }, { | |
| "Name": "Mason", | |
| "Gender": "Male", | |
| "City": "Los Angeles", | |
| "State": "California" | |
| }, { | |
| "Name": "Ethan", | |
| "Gender": "Male", | |
| "City": "Chicago", | |
| "State": "Illinois" | |
| }, { | |
| "Name": "Noah", | |
| "Gender": "Male", | |
| "City": "Newyork", | |
| "State": "NewYork" | |
| }, { | |
| "Name": "Sophia", | |
| "Gender": "Female", | |
| "City": "Los Angeles", | |
| "State": "California" | |
| }, { | |
| "Name": "Emma", | |
| "Gender": "Female", | |
| "City": "Los Angeles", | |
| "State": "California" | |
| }, { | |
| "Name": "Isabella", | |
| "Gender": "Female", | |
| "City": "Chicago", | |
| "State": "Illinois" | |
| }, { | |
| "Name": "Olivia", | |
| "Gender": "Female", | |
| "City": "Chicago", | |
| "State": "Illinois" | |
| }, { | |
| "Name": "Elizabeth", | |
| "Gender": "Female", | |
| "City": "Newyork", | |
| "State": "Newyork" | |
| }, { | |
| "Name": "zoey", | |
| "Gender": "Female", | |
| "City": "Newyork", | |
| "State": "Newyork" | |
| }]; | |
| document.getElementById('btn').addEventListener('click', function(){ | |
| processedData = count(data); | |
| }); | |
| document.getElementById('get').addEventListener('click', function(){ | |
| if(!processedData){ | |
| alert('press go first'); | |
| } | |
| alert(get(processedData, 'City', 'Chicago')); | |
| }); | |
| } | |
| function count(data){ | |
| /* LONG VERSION | |
| var result = {Name: {}, Gender: {}, City: {}, State: {}}; | |
| for(var i = 0; i < data.length; i++){ | |
| if(!result.Name[data[i].Name]){ | |
| result.Name[data[i].Name] = 0; | |
| } | |
| result.Name[data[i].Name]++; | |
| if(!result.Gender[data[i].Gender]){ | |
| result.Gender[data[i].Gender] = 0; | |
| } | |
| result.Gender[data[i].Gender]++; | |
| if(!result.City[data[i].City]){ | |
| result.City[data[i].City] = 0; | |
| } | |
| result.City[data[i].City]++; | |
| if(!result.State[data[i].State]){ | |
| result.State[data[i].State] = 0; | |
| } | |
| result.State[data[i].State]++; | |
| }; | |
| */ | |
| //SHORT VERSION | |
| var result = {}; | |
| for(var i = 0; i < data.length; i++){ | |
| for(var item in data[i]){ | |
| if(!result[item]){ | |
| result[item] = {}; | |
| } | |
| if(!result[item][data[i][item]]){ | |
| result[item][data[i][item]] = 0; | |
| } | |
| result[item][data[i][item]]++; | |
| } | |
| } | |
| console.log(result); | |
| return result; | |
| } | |
| function get(data, group, item){ | |
| return data[group][item]; | |
| } |
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| <input type="button" id="btn" value="Go" /> |
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| var data = [{ | |
| "Name": "Jacob", | |
| "Gender": "Male", | |
| "City": "Newyork", | |
| "State": "Newyork" | |
| }, { | |
| "Name": "Mason", | |
| "Gender": "Male", | |
| "City": "Los Angeles", | |
| "State": "California" | |
| }, { | |
| "Name": "Ethan", | |
| "Gender": "Male", | |
| "City": "Chicago", | |
| "State": "Illinois" | |
| }, { | |
| "Name": "Noah", | |
| "Gender": "Male", | |
| "City": "Newyork", | |
| "State": "NewYork" | |
| }, { | |
| "Name": "Sophia", | |
| "Gender": "Female", | |
| "City": "Los Angeles", | |
| "State": "California" | |
| }, { | |
| "Name": "Emma", | |
| "Gender": "Female", | |
| "City": "Los Angeles", | |
| "State": "California" | |
| }, { | |
| "Name": "Isabella", | |
| "Gender": "Female", | |
| "City": "Chicago", | |
| "State": "Illinois" | |
| }, { | |
| "Name": "Olivia", | |
| "Gender": "Female", | |
| "City": "Chicago", | |
| "State": "Illinois" | |
| }, { | |
| "Name": "Elizabeth", | |
| "Gender": "Female", | |
| "City": "Newyork", | |
| "State": "Newyork" | |
| }, { | |
| "Name": "zoey", | |
| "Gender": "Female", | |
| "City": "Newyork", | |
| "State": "Newyork" | |
| }]; |
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