i have array in this form
['203,448', '204,297', '204,448', '205,297', '230,448', '231,297', '24,448', '24,297','203,548', '204,548', '204,548' ]
Desire Output :
0:['203,448', '204,448', '230,448','24,448', ]
1: [ '204,297', '205,297', '231,297', '24,297']
2: ['203,548', '204,548', '204,548']
I want to sepreate Elements on the base of 2 featur i.e 203,448 and 204 ,297
You could take a hash table for same second part of the string and collect same items in an array.
var data = ['203,448', '204,297', '204,448', '205,297', '230,448', '231,297', '24,448', '24,297', '203,548', '204,548', '204,548'],
hash = Object.create(null),
result = data.reduce(function (r, a) {
var key = a.split(',')[1];
if (!hash[key]) {
hash[key] = [];
r.push(hash[key]);
}
hash[key].push(a);
return r;
}, []);
console.log(result);.as-console-wrapper { max-height: 100% !important; top: 0; }For putting only the first part, you could use splitting array
var data = ['203,448', '204,297', '204,448', '205,297', '230,448', '231,297', '24,448', '24,297', '203,548', '204,548', '204,548'],
hash = Object.create(null),
result = data.reduce(function (r, a) {
var s = a.split(',');
if (!hash[s[1]]) {
hash[s[1]] = [];
r.push(hash[s[1]]);
}
hash[s[1]].push(s[0]);
return r;
}, []);
console.log(result);.as-console-wrapper { max-height: 100% !important; top: 0; }