Created
July 2, 2020 11:54
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reorganize data for same type in javascript
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| var orig_json = { | |
| "dishList": [{ | |
| "dishName": "bla-bla1", | |
| "dishNumber": 4, | |
| "dishType": "Type 1" | |
| }, { | |
| "dishName": "bla-bla2", | |
| "dishNumber": 12, | |
| "dishType": "Type 1" | |
| }, { | |
| "dishName": "bla-bla3", | |
| "dishNumber": 2, | |
| "dishType": "Type 2" | |
| }] | |
| }, | |
| new_json; | |
| var reorg = function (data) { | |
| var types = [], | |
| dishes = []; | |
| // pass 1, add distinct types | |
| data.dishList.forEach(function (value, index, array) { | |
| if (types.indexOf(value.dishType) === -1) { | |
| // doesn't yet exist | |
| types.push(value.dishType); | |
| } | |
| }); | |
| // for each distinct type | |
| types.forEach(function (value, index, array) { | |
| // pass two to n, reorganize based on type | |
| data.dishList.forEach(function (val, i, a) { | |
| if (val.dishType === value) { | |
| // matches dishType | |
| dishes.push({ | |
| "dishName": val.dishName, | |
| "dishNumber": val.dishNumber | |
| }); | |
| } | |
| }); | |
| // redefine value of current array element | |
| array[index] = { | |
| "dishType": value, | |
| "dishes": dishes | |
| }; | |
| // reset dishes array | |
| dishes = []; | |
| }); | |
| return { | |
| "dishList": types | |
| }; | |
| }; | |
| new_json = reorg(orig_json); |
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