js数组去重：二维数组去重、去除相同的值、移除相同的数组

//二维数组去重
var arr = [
  [1,2,3],
  [2,3,4],
  [4,5,6]
];
var newArr = [];
for (var i=0; i < arr.length; i++) {
  for (var j=0; j < arr[i].length; j++) {
    var v = arr[i][j];
    // 判断是否存在数组中，不存在在往下走
    if(!newArr.includes(v)) {
      newArr.push(v);
    }
  }
}
console.log(newArr);  //[1, 2, 3, 4, 5, 6]
//二维数组只保留出现一次的值
var arr = [
  [1,2,3],
  [2,3,4],
  [4,5,6]
];
var newArr1 = []; // 去重后的
var newArr2 = []; // 重复的
var newArr3 = []; // 只出现一次的
for (var i=0; i < arr.length; i++) {
  for (var j=0; j < arr[i].length; j++) {
    var v = arr[i][j];
    // 判断是否存在数组中，不存在在往下走
    if(!newArr1.includes(v)) {
      newArr1.push(v);
    } else {
      newArr2.push(v);
    }
  }
}
for (var i=0; i < newArr1.length; i++) {
  var v = newArr1[i];
  if(!newArr2.includes(v)) {
    newArr3.push(v);
  }
}
console.log(newArr1); //[1, 2, 3, 4, 5, 6]
console.log(newArr2); //[2, 3, 4]
console.log(newArr3); //[1, 5, 6]
//二维数组移除相同的数组
const arrays = [
  [1, 2, 5, 6],
  [1, 2],
  [2, 3],
  [1, 2],
  [3, 4],
  [1, 2]
]
const filterArray = array => {
const newArray = [];
array.forEach((currentValue) => {
  let isPush = true;
  newArray.forEach((currentValueIn) => {
    if (currentValueIn) {
      if (currentValue[0] === currentValueIn[0] && currentValue[1] ===
        currentValueIn[1]) {
        isPush = false;
      }
    } else {
      newArray.push(currentValue)
    }
  })
  if (isPush) {
    newArray.push(currentValue)
  }
})
return newArray;
}
console.log(filterArray(arrays));
结果：
[
  [1,2,5,6],
  [2,3],
  [3,4]
]
let arr = [1,13,24,11,11,14,1,2]
let arr1 = []
  for (let i = 0; i < arr.length; i++) {
    if (arr1.indexOf(arr[i]) === -1) {
      arr1.push(arr[i])
    }
  }
console.log(arr) //[1,2,11,14,13,24]