Answers for "javascript convert array item into object with key"

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javascript array to object with keys

let arr = [{a: 'a', b: 1, c: 'c'}, {a: 'a', b: 2, c: 'c'}, {a: 'a', b: 3, c: 'c'}]:
 let mapped = arr.reduce (function (map, obj) { 
        map[obj.b] = obj; 
        return map;
      },{}); // reduce
console.log (mapped); // {1: {a: 'a', b: 1, c: 'c'}, 2: {a: 'a', b: 2, c: 'c'}, 3: {a: 'a', b: 3, c: 'c'}

Posted by: Guest on February-18-2021

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