A
arr.map(v => +v);
Size: a a a
A
arr.map(v => +v);
G
*
A
*
a
const arr = ["2020, 10, 13"];поясню.
arr[0].split(', ').map(v=>+v); // вернет [2020,10,13]
arr[0]
равно "2020, 10, 13"
"2020, 10, 13".split(', ')
равно ["2020","10","13"]
["2020","10","13"].map(v=>+v)
равно [2020,10,13]
A
const arr = ["2020, 10, 13"];поясню.
arr[0].split(', ').map(v=>+v); // вернет [2020,10,13]
arr[0]
равно "2020, 10, 13"
"2020, 10, 13".split(', ')
равно ["2020","10","13"]
["2020","10","13"].map(v=>+v)
равно [2020,10,13]
a
A
const arr = ["2020, 10, 13", "2020, 11, 13"]
*
a
const arr = ["2020, 10, 13", "2020, 11, 13"]
const arr = ["2020, 10, 13", "2020, 12, 31"];
arr.map(el => el.split(', ').map(v=>+v)); // вернет [ [ 2020, 10, 13 ], [ 2020, 12, 31 ] ]
M
arr.reduce((acc, v) => [...acc, ...v.split(',').map(v => +v)], []);
*
arr.reduce((acc, v) => [...acc, ...v.split(',').map(v => +v)], []);
a
arr.reduce((acc, v) => [...acc, ...v.split(',').map(v => +v)], []);
[ 2020, 10, 13, 2020, 12, 31 ]
[ [ 2020, 10, 13 ], [ 2020, 12, 31 ] ]
*
M
[ 2020, 10, 13, 2020, 12, 31 ]
[ [ 2020, 10, 13 ], [ 2020, 12, 31 ] ]
M
A
M
A
arr.reduce((acc, v) => [...acc, ...v.split(',').map(v => +v)], []);