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eliminar duplicados de javascript de matriz json multidimensional

Intentar eliminar el objeto duplicado de las matrices para que el conjunto de matrices contenga solo valores únicos. entrada dada

 var data=[ [{"name":"abc"}], [{"name":"abc"}], [{"name":"abc"},{"name":"def"}], [{"name":"def"},{"name":"abc"},{"name":"efg"}], [{"name":"abc"}] ]

Rendimiento esperado

 result= [ [{"name":"abc"}], [], [{"name":"def"}], [{"name":"def"},{"name":"efg"}], [] ]

tratando de deduplicar el objeto de toda la matriz (existe en todos). comparación de objetos en lugar de atributo de nombre Cualquier sugerencia de lógica aquí

about 4 years ago · Juan Pablo Isaza
2 answers
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0

Puede intentar mapear la matriz de nivel superior y filtrar cada matriz de elementos. Luego, puede declarar una variable que contendrá los valores únicos para que tenga una base para la verificación.

 const data = [ // your multi-dimentional array here... ] const unique = [] const filteredData = data.map(items => { const filteredItems = items.filter(item => { if (unique.includes(item.name)) { return false } else { unique.push(item.name) return true } }) return filteredItems }) console.log(filteredData)
about 4 years ago · Juan Pablo Isaza Report

0

... más cosas torpes:

 var data=[ [{"name":"abc"}], [{"name":"abc"}], [{"name":"abc"},{"name":"def"}], [{"name":"def"},{"name":"abc"},{"name":"efg"}], [{"name":"abc"}] ]; let newMap = new Map(); for(let item in data) { const [key, val] = [item, data[item]] addToMap(val) } function addToMap(entry) { if(entry.length > 1) { for(let item in entry) { addToMap([entry[item]]) } } else { const item = entry[0]; itemName = item?.name; console.log({item, itemName}); if(!!itemName && !newMap.has(itemName)) { const key = itemName; const val = item; newMap.set(key, val); } } } let result = Array.from(newMap).flat() .map(key => newMap.get(key) || []) // .map(key => newMap.get(key) || null) // .filter(item => item !== null) console.log('RESULT ', result)
about 4 years ago · Juan Pablo Isaza Report
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