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"}javascript access property values list of objects
// Access all properties and values in a JS object:
let valuesArray = Object.entries(MyObject);
for (let value of valuesArray) {
document.write(value + "<br>"); // value is the property,value pair
}
/* Result: propName,value
propName,value
...
For clarity: */
let person = {
name: "Piet",
age: 42
};
Object.keys(person) // = ["name", "age"]
Object.values(person) // = ["Piet", 42]
Object.entries(person) // = [ ["name","Piet"], ["age",42] ]object get array of values
const data = {
"2015": {
"year": 2015,
"cover": {}
}
}
Object.entries(data).forEach(([key, value]) => console.log(key, value));find an object from array of objects javascript
function getByValue2(arr, value) {
var result = arr.filter(function(o){return o.b == value;} );
return result? result[0] : null; // or undefined
}Copyright © 2021 Codeinu
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