javascript řadit pole s objekty
var array = [
{name: "John", age: 34},
{name: "Peter", age: 54},
{name: "Jake", age: 25}
];
array.sort(function(a, b) {
return a.age - b.age;
}); // Sort youngest first
javascript Seřadit pole objektů
const books = [
{id: 1, name: 'The Lord of the Rings'},
{id: 2, name: 'A Tale of Two Cities'},
{id: 3, name: 'Don Quixote'},
{id: 4, name: 'The Hobbit'}
]
compareObjects(object1, object2, key) {
const obj1 = object1[key].toUpperCase()
const obj2 = object2[key].toUpperCase()
if (obj1 < obj2) {
return -1
}
if (obj1 > obj2) {
return 1
}
return 0
}
books.sort((book1, book2) => {
return compareObjects(book1, book2, 'name')
})
// Result:
// {id: 2, name: 'A Tale of Two Cities'}
// {id: 3, name: 'Don Quixote'}
// {id: 4, name: 'The Hobbit'}
// {id: 1, name: 'The Lord of the Rings'}
javascript druh pole objektu nemovitosti
function sortByDate( a, b ) {
if ( a.created_at < b.created_at ){
return -1;
}
if ( a.created_at > b.created_at ){
return 1;
}
return 0;
}
myDates.sort(sortByDate);//myDates is not sorted.
Seřadit podle vlastností objektu javascript
let list = [
{
name: "world"
},
{
name: "hello",
},
];
// This doesn't account for if names are the same between objects
let x = list.sort((a, b) => (a.name > b.name ? 1 : -1));
console.log(x);
/*
[
{
name: "hello",
},
{
name: "world"
},
];
*/
javascript třídění pole objektů podle hodnoty klíče
arr.sort((x, y) => x.distance - y.distance);
javascript Seřadit pole objektů podle hodnoty klíče
arr.sort((x, y) => x.distance - y.distance);
javascript druh objektu
var maxSpeed = {
car: 300,
bike: 60,
motorbike: 200,
airplane: 1000,
helicopter: 400,
rocket: 28800
};
var sortable = [];
for (var vehicle in maxSpeed) {
sortable.push([vehicle, maxSpeed[vehicle]]);
}
sortable.sort(function(a, b) {
return a[1] - b[1];
});
//[["bike", 60], ["motorbike", 200], ["car", 300],
//["helicopter", 400], ["airplane", 1000], ["rocket", 28800]]
JavaScript Seřadit objekt js
grossaryList = {
'bread': 1,
'apple': 6,
'milk': 1,
'orange': 3,
'broccoli': 2
}
return Object
.entries(grossaryList)
.sort((a,b) => b[1]-a[1])
//=> [['apple', 6],['orange', 3],['broccoli', 2],['bread',1],['milk', 1]]
js objekt druh
var maxSpeed = {
car: 300,
bike: 60,
motorbike: 200,
airplane: 1000,
helicopter: 400,
rocket: 8 * 60 * 60
};
var sortable = [];
for (var vehicle in maxSpeed) {
sortable.push([vehicle, maxSpeed[vehicle]]);
}
sortable.sort(function(a, b) {
return a[1] - b[1];
});
//[["bike", 60], ["motorbike", 200], ["car", 300],
//["helicopter", 400], ["airplane", 1000], ["rocket", 28800]]
Seřadit objekt podle hodnoty javascript
sort object by value javascript