Example 1: js get array item by property
const jsObjects = [
{id: 1, displayName: "First"},
{id: 2, displayName: "Second"},
{id: 3, displayName: "Third"},
{id: 4, displayName: "Fourth"}
]
// You can use the arrow function expression:
var result = jsObjects.find(obj => {
// Returns the object where
// the given property has some value
return obj.id === 1
})
console.log(result)
// Output: {id: 1, displayName: "First"}
Example 2: find in array of objects javascript
let arr = [
{ name:"string 1", value:"this", other: "that" },
{ name:"string 2", value:"this", other: "that" }
];
let obj = arr.find(o => o.name === 'string 1');
console.log(obj);
Example 3: javascript find object by property in array
// To find a specific object in an array of objects
myObj = myArrayOfObjects.find(obj => obj.prop === 'something');
Example 4: js find element in array by property
var result = jsObjects.find(obj => {
return obj.b === 6
})
Example 5: javascript find item in array of objects
var __POSTS = [
{ id: 1, title: 'Apple', description: 'Description of post 1' },
{ id: 2, title: 'Orange', description: 'Description of post 2' },
{ id: 3, title: 'Guava', description: 'Description of post 3' },
{ id: 4, title: 'Banana', description: 'Description of post 4' }
];
var __FOUND = __POSTS.find(function(post, index) {
if(post.title == 'Guava')
return true;
});
// On success __FOUND will contain the complete element (an object)
// On failure it will contain undefined
console.log(__FOUND); // { id: 3, title: 'Guava', description: 'Description of post 3' }
Example 6: javascript find object in array by property value
const fruits = ['apple', 'banana', 'grapes', 'mango', 'orange'];
const filterItems = (needle, heystack) => {
let query = needle.toLowerCase();
return heystack.filter(item => item.toLowerCase().indexOf(query) >= 0);
}
console.log(filterItems('ap', fruits)); // ['apple', 'grapes']
console.log(filterItems('ang', fruits)); // ['mango', 'orange']