Javascript 从二维数组中的每个数组中删除特定元素

我正在尝试从每个数组中移除第三个元素

我所拥有的：

data =
[["51.9435","-4.26697","450","125"],
["51.9437","-4.26717","450","125"],
["51.9438","-4.26733","450","125"],
["51.944","-4.26748","450","125"]]

我需要的是：

data =
[["51.9435","-4.26697","125"],
["51.9437","-4.26717","125"],
["51.9438","-4.26733","125"],
["51.944","-4.26748","125"]]

我假设使用拼接，但无法想象如何将其用于2d阵列。

在每个子阵列上使用。

const data=[[“51.9435”、“-4.26697”、“450”、“125”]，
["51.9437","-4.26717","450","125"],
["51.9438","-4.26733","450","125"],
["51.944","-4.26748","450","125"]]
for（常量数据数组）
阵列拼接（2,1）
console.log（数据）

在每个子阵列上使用。

const data=[[“51.9435”、“-4.26697”、“450”、“125”]，
["51.9437","-4.26717","450","125"],
["51.9438","-4.26733","450","125"],
["51.944","-4.26748","450","125"]]
for（常量数据数组）
阵列拼接（2,1）
console.log（数据）

您可以使用以下代码段

data=[[“51.9435”、“-4.26697”、“450”、“125”]，
["51.9437","-4.26717","450","125"],
["51.9438","-4.26733","450","125"],
["51.944","-4.26748","450","125"]];
map（（arr）=>{arr.splice（2,1）；}）；
控制台日志（数据）您可以使用以下代码段


data=[[“51.9435”、“-4.26697”、“450”、“125”]，
["51.9437","-4.26717","450","125"],
["51.9438","-4.26733","450","125"],
["51.944","-4.26748","450","125"]];
map（（arr）=>{arr.splice（2,1）；}）；
控制台日志（数据）您可以将
.map（）
与
.splice（）
一起使用


.map（）
使用回调函数返回的值创建一个新数组
.splice（）
从数组中删除一个或多个元素

演示：


let数据=[
["51.9435","-4.26697","450","125"],
["51.9437","-4.26717","450","125"],
["51.9438","-4.26733","450","125"],
["51.944","-4.26748","450","125"]
];
让removeIndex=（array，index）=>array.map（a=>（a.splice（index，1），a））；
日志（removeIndex（数据，2））您可以将
.map（）
与
.splice（）
一起使用


.map（）
使用回调函数返回的值创建一个新数组
.splice（）
从数组中删除一个或多个元素

演示：


let数据=[
["51.9435","-4.26697","450","125"],
["51.9437","-4.26717","450","125"],
["51.9438","-4.26733","450","125"],
["51.944","-4.26748","450","125"]
];
让removeIndex=（array，index）=>array.map（a=>（a.splice（index，1），a））；
日志（removeIndex（数据，2））如果只想删除一个元素，则可以使用
splice
提供要删除的索引的索引，在这种情况下
2
和
1

data = [
  ["51.9435", "-4.26697", "450", "125"],
  ["51.9437", "-4.26717", "450", "125"],
  ["51.9438", "-4.26733", "450", "125"],
  ["51.944", "-4.26748", "450", "125"],
]

data.forEach( arr => {
// loop over all arrays to get the individual ones. 
  arr.splice(2 , 1) // then call splice. 
})

console.log(data)

如果只想删除一个元素，可以使用
splice
提供要删除的索引的索引（在本例中为
2
和
1
）

data = [
  ["51.9435", "-4.26697", "450", "125"],
  ["51.9437", "-4.26717", "450", "125"],
  ["51.9438", "-4.26733", "450", "125"],
  ["51.944", "-4.26748", "450", "125"],
]

data.forEach( arr => {
// loop over all arrays to get the individual ones. 
  arr.splice(2 , 1) // then call splice. 
})

console.log(data)

如何保持数据的原样并将拼接结果放入新数组？如何保持数据的原样并将拼接结果放入新数组？