从多数组中删除重复值

Question

如何删除所有重复的值？所以只剩下非重复值。

const sample = [["08:00",true,],["09:00",true,],["09:00",false,], ["10:00",true,]]

const newArray = [["08:00", true,], ["10:00",true,]]

Answer 1

试试这个 :

const sample = [["08:00",true,],["09:00",true,],["09:00",false,], ["10:00",true,]];

const flatArr = sample.flat();

const res = sample.filter((arr, index) => flatArr.indexOf(arr[0]) === flatArr.lastIndexOf(arr[0]));

console.log(res);

Answer 2

试试这个：

const sample = [
    ["08:00",true,],
    ["09:00",true,],
    ["09:00",false,],
    ["10:00",true,]
    ];
const newArray = [
    ["08:00", true,], 
    ["10:00", true,]
    ];
    
function checkDuplicate (array) {
    let output = [];
    array.forEach(function(item) {
        if(!JSON.stringify(output).includes(JSON.stringify(item))){
            output.push(item);
        }
    });
    return output;
}
console.log(checkDuplicate([...sample,...newArray]));

从多数组中删除重复值

Remove duplicated values from multi array

javascript

arrays