I have an array of
let arr = [
{workoutName : 'push-up'},
{workoutName : 'plank'},
{workoutName : 'single-Leg (Left)'},
{workoutName : 'arm-extend (Right)'},
{workoutName : 'Jumping Jack'},
{workoutName : 'single-Leg (Right)'},
{workoutName : 'something (Left)'},
{workoutName : 'arm-extend (Left)'},
{workoutName : 'somethingElse'},
{workoutName : 'something (Right)'}
]
I would like to sort / shift the original objects to match their pairs if available in this list and keep the positioning. Like shifting the names around without breaking the current structure.
This does sort it but I need to keep the same order.
let sorted = arr.sort( function( a , b){
if(a.workoutName > b.workoutName) return 1;
if(a.workoutName < b.workoutName) return -1;
return 0;
});
console.log(sorted);
Array [ Object { workoutName: "Jumping Jack" },
Object { workoutName: "arm-extend (Right)" },
Object { workoutName: "arm-extend (Left)" },
Object { workoutName: "plank" },
Object { workoutName: "push-up" },
Object { workoutName: "single-Leg (Left)" },
Object { workoutName: "single-Leg (Right)" },
Object { workoutName: "something (Left)" },
Object { workoutName: "something (Right)" },
Object { workoutName: "somethingElse" }
]
expected result
[
{workoutName : 'push-up'},
{workoutName : 'plank'},
{workoutName : 'single-Leg (Left)'},
{workoutName : 'single-Leg (Right)'},
{workoutName : 'arm-extend (Right)'},
{workoutName : 'arm-extend (Left)'},
{workoutName : 'Jumping Jack'},
{workoutName : 'something (Left)'},
{workoutName : 'something (Right)'}
{workoutName : 'somethingElse'},
]
You could group by the first part of workoutName and get grouped items in order as flat array.
const
array = [{ workoutName: 'push-up' }, { workoutName: 'plank' }, { workoutName: 'single-Leg (Left)' }, { workoutName: 'arm-extend (Right)' }, { workoutName: 'Jumping Jack' }, { workoutName: 'single-Leg (Right)' }, { workoutName: 'something (Left)' }, { workoutName: 'arm-extend (Left)' }, { workoutName: 'somethingElse' }, { workoutName: 'something (Right)' }],
order = { left: 1, right: 2 },
sortReplace = s => s.replace(/^.*?(\((left|right)\))*$/i, (_, __, side = '') => order[side.toLowerCase()] || 0),
sortSide = (a, b) => sortReplace(a.workoutName) - sortReplace(b.workoutName),
getGroup = s => s.match(/.*?(?=(\s\(|$))/)?.[0] || '',
result = Object
.values(array.reduce((r, o) => {
const group = getGroup(o.workoutName);
if ((r[group] = r[group] || []).push(o) > 1) {
r[group].sort(sortSide);
}
return r;
}, {}))
.flat();
console.log(result);.as-console-wrapper { max-height: 100% !important; top: 0; }