I am searching for individuals above the age of 21.
const people = [
{0: {name: 'john', age: 30}},
{1: {name: 'jay', age: 33}},
{2: {name: 'cris', age: 18}}
];
The code snippet provided below did not produce any results.
const result = people.filter(person => person.age >= 21);
console.log(result);
The numbers 0, 1, and 2 represent the indices of the array.
The method shown does not actually initialize an array with the specified indices; rather, it creates distinct objects with properties 0, 1, and so on.
To properly declare the array, use this syntax:
const individuals = [
{name: 'Alice', age: 25},
{name: 'Bob', age: 40},
{name: 'Eve', age: 22}
];
Index 0, 1, and 2 represent locations in the array
I have a different perspective on this; I think they actually correspond to the keys of the objects. Give this a try:
const people = [
{0: {name: 'john', age: 30}},
{1: {name: 'jay', age: 33}},
{2: {name: 'cris', age: 18}}
];
const result = people.filter(person => Object.values(person)[0].age >= 21);
console.log(result);Alternatively, you could define your array like this for it to function correctly:
const people = [
{name: 'john', age: 30},
{name: 'jay', age: 33},
{name: 'cris', age: 18}
];
const result = people.filter(person => person.age >= 21);
console.log(result);It is crucial to note that this approach is effective only when the keys 0, 1, 2.. correspond directly with the index values.
Any alterations made to the order of elements will render this solution ineffective.
const people = [
{0: {name: 'sarah', age: 25}},
{1: {name: 'mike', age: 29}},
{2: {name: 'emma', age: 22}}
];
people.filter((item, index) => item[index].age >= 21);
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