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Convert a list of objects to a dictionary by one of their properties
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| /** | |
| * Convert a list of objects to a dictionary by one of their properties | |
| * Assumes that all objects have the property and the value is unique | |
| * | |
| * @param {Array<Object>} objects - The array of objects | |
| * @param {string} property - The property to turn the list of objects into Dict | |
| * @return {Object<Object>} Dictionary of unmodified objects with the value | |
| * of the properties as keys | |
| */ | |
| function objectsToDictByProperty(objects, property) { | |
| return objects | |
| .filter(o => o && o[property] != null) | |
| .reduce((acc, o) => (acc[o[property]] = o, acc), {}); | |
| } |
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| const orders = [ | |
| { | |
| "id": "4VzzEviJGYUtAeSsJlI9QB", | |
| "flavor": "Chocolate", | |
| "pounds": 124, | |
| "destination": "L1", | |
| "date": "Oct 11 2021 11:52:41" | |
| }, | |
| { | |
| "id": "$h%yzMv;0#6euoX8+V&J", | |
| "flavor": "Strawberry", | |
| "pounds": 10, | |
| "destination": "L2", | |
| "date": "Oct 3 2021 13:32:11" | |
| }, | |
| { | |
| "id": "nn,#W3^nP#LQ&Amz02B3", | |
| "flavor": "Bubble Gum", | |
| "pounds": 10, | |
| "destination": "L3", | |
| "date": "Oct 23 2021 21:12:35" | |
| }, | |
| { | |
| "id": "7&JZK3,2Hi#8+hU?W*A0", | |
| "flavor": "Cookie Dough", | |
| "pounds": 32, | |
| "destination": "L1", | |
| "date": "Oct 23 2021 09:22:53" | |
| } | |
| ]; | |
| const ordersDict = objectsToDictByProperty(orders, "id"); | |
| console.log(ordersDict); | |
| // output: | |
| // { | |
| // "4VzzEviJGYUtAeSsJlI9QB": { | |
| // "id": "4VzzEviJGYUtAeSsJlI9QB", | |
| // "flavor": "Chocolate", | |
| // "pounds": 124, | |
| // "destination": "L1", | |
| // "date": "Oct 11 2021 11:52:41" | |
| // }, | |
| // "$h%yzMv;0#6euoX8+V&J": { | |
| // "id": "$h%yzMv;0#6euoX8+V&J", | |
| // "flavor": "Strawberry", | |
| // "pounds": 10, | |
| // "destination": "L2", | |
| // "date": "Oct 3 2021 13:32:11" | |
| // }, | |
| // "nn,#W3^nP#LQ&Amz02B3": { | |
| // "id": "nn,#W3^nP#LQ&Amz02B3", | |
| // "flavor": "Bubble Gum", | |
| // "pounds": 10, | |
| // "destination": "L3", | |
| // "date": "Oct 23 2021 21:12:35" | |
| // }, | |
| // "7&JZK3,2Hi#8+hU?W*A0": { | |
| // "id": "7&JZK3,2Hi#8+hU?W*A0", | |
| // "flavor": "Cookie Dough", | |
| // "pounds": 32, | |
| // "destination": "L1", | |
| // "date": "Oct 23 2021 09:22:53" | |
| // } | |
| // } |
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Object list to dictionary.
Convert any list of objects to a dictionary. The only requirement is the specified property must be unique.