sort array of objects by string property value
function compareFirstNames( a, b ) {
if ( a.first_name < b.first_name ){
return -1;
}
if ( a.first_name > b.first_name ){
return 1;
}
return 0;
}
var people =[
{"first_name":"Carol", "age":29},
{"first_name":"Anna", "age":32},
{"first_name":"Bob", "age":32}
];
people.sort( compareFirstNames ); //people is now sorted by first name from a-zsort array of objects javascript by value
let orders = [
{
order: 'order 1', date: '2020/04/01_11:09:05'
},
{
order: 'order 2', date: '2020/04/01_10:29:35'
},
{
order: 'order 3', date: '2020/04/01_10:28:44'
}
];
console.log(orders);
orders.sort(function(a, b){
let dateA = a.date.toLowerCase();
let dateB = b.date.toLowerCase();
if (dateA < dateB)
{
return -1;
}
else if (dateA > dateB)
{
return 1;
}
return 0;
});
console.log(orders);javascript sort array of objects by key value ascending and descending order
function compareValues(key, order = 'asc') {
return function innerSort(a, b) {
if (!a.hasOwnProperty(key) || !b.hasOwnProperty(key)) {
// property doesn't exist on either object
return 0;
}
const varA = (typeof a[key] === 'string')
? a[key].toUpperCase() : a[key];
const varB = (typeof b[key] === 'string')
? b[key].toUpperCase() : b[key];
let comparison = 0;
if (varA > varB) {
comparison = 1;
} else if (varA < varB) {
comparison = -1;
}
return (
(order === 'desc') ? (comparison * -1) : comparison
);
};
}Copyright © 2021 Codeinu
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