SOURCE

// 数组去重---2022-06-14
// 二维数组

var arrshuang = [1, -5, -4, [0, -4, 7], 7, 3, [2, 3, 4]]
var result = []
function unique(arrIn) {

    for (var i = 0; i < arrIn.length; i++) {
        if (typeof arrIn[i] === 'number') {
            if (result.indexOf(arrIn[i]) === -1) {
                result.push(arrIn[i])
            }
        }
        if (typeof arrIn[i] === 'object') {
            result = unique(arrIn[i])
            console.log(result)
        }
    }
    return result

}

console.log('shuangchong', unique(arrshuang))