Kiwango cha 7.7 cha Kazi za JavaScript
Weka safu yenye nambari. Hesabu jumla ya
idadi ya tarakilishi 3 katika nambari zote
za safu iliyopewa.
Andika programu ambayo itaunda safu ifuatayo:
[
'1',
'12',
'123',
'1234',
'12345',
]
Safu imetolewa:
let affairs = [
{
date: '2019-12-29',
event: 'name1',
},
{
date: '2019-12-31',
event: 'name2',
},
{
date: '2019-12-29',
event: 'name3',
},
{
date: '2019-12-30',
event: 'name4',
},
{
date: '2019-12-29',
event: 'name5',
},
{
date: '2019-12-31',
event: 'name6',
},
{
date: '2019-12-29',
event: 'name7',
},
{
date: '2019-12-30',
event: 'name8',
},
{
date: '2019-12-30',
event: 'name9',
},
]
Pata tarehe zipekee kutoka kwa safu hii, yaani kama ifuatavyo:
['2019-12-29', '2019-12-30', '2019-12-31']
