mirror of
https://github.com/fmhy/edit.git
synced 2026-02-18 09:11:33 +11:00
improve
This commit is contained in:
parent
d9db74cb59
commit
2d0c2cdd47
1 changed files with 9 additions and 1 deletions
|
|
@ -1,3 +1,11 @@
|
||||||
const arr = [{name: 'Alice', age: 30}, {name: 'Bob', age: 25}, {name: 'Charlie', age: 30}];
|
const arr = [{name: 'Alice', age: 30}, {name: 'Bob', age: 25}, {name: 'Charlie', age: 30}];
|
||||||
const groupedByAge = groupBy(arr, item => item.age);
|
|
||||||
|
const groupedByAge = arr.reduce((groups, item) => {
|
||||||
|
if (!groups[item.age]) {
|
||||||
|
groups[item.age] = [];
|
||||||
|
}
|
||||||
|
groups[item.age].push(item);
|
||||||
|
return groups;
|
||||||
|
}, {});
|
||||||
|
|
||||||
// groupedByAge is now equal to {25: [{name: 'Bob', age: 25}], 30: [{name: 'Alice', age: 30}, {name: 'Charlie', age: 30}]}
|
// groupedByAge is now equal to {25: [{name: 'Bob', age: 25}], 30: [{name: 'Alice', age: 30}, {name: 'Charlie', age: 30}]}
|
||||||
|
|
|
||||||
Loading…
Add table
Add a link
Reference in a new issue