文本文件到 JavaScript 嵌套数组

Question

我有 this.txt 文件更改为嵌套数组：

000011000000
000100001100
000001100001
010010001000
100101000100
101010010001
001000001001
000001000111
010100100010
010010010010
000000011100
001001110000

格式：

var data = [
        [0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0],
        [0, 0, 0, 1, 0, 0, 0, 0, 1, 1, 0, 0],
        [0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 1],
        [0, 1, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0],
        [1, 0, 0, 1, 0, 1, 0, 0, 0, 1, 0, 0],
        [1, 0, 1, 0, 1, 0, 0, 1, 0, 0, 0, 1],
        [0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 1],
        [0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 1, 1],
        [0, 1, 0, 1, 0, 0, 1, 0, 0, 0, 1, 0],
        [0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0],
        [0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 0, 0],
        [0, 0, 1, 0, 0, 1, 1, 1, 0, 0, 0, 0]
    ]

到目前为止我所做的是：

1. 阅读文件：

function readMatrixFile(){
    var inputElement = document.getElementById("adjencyMatrixInput");
    var fileList = inputElement.files;
    var plainMatrix = new FileReader();
    plainMatrix.readAsText(fileList[0]);
    plainMatrix.onload = function () {
        //Add to Matrix
        renderMatrix(plainMatrix)
    }
}

和 2. 拆分文件

function renderMatrix(plainMatrix) {
    var matrix = plainMatrix.result;
    var mtx = [];

    matrix = matrix.split("\n");
    
}

我知道我需要通过 for 循环，但不确定如何获取嵌套数组。

Answer 1

用换行符分割字符串，然后在每个项目上使用 map并将字符串转换为具有扩展语法的字符数组。

 const str = `000011000000 000100001100 000001100001 010010001000 100101000100 101010010001 001000001001 000001000111 010100100010 010010010010 000000011100 001001110000` const res = str.split("\n").map(e => [...e]) console.log(res)

要将字符转换为数字，map 在字符数组上并解析每个项目：

 const str = `000011000000 000100001100 000001100001 010010001000 100101000100 101010010001 001000001001 000001000111 010100100010 010010010010 000000011100 001001110000` const res = str.split("\n").map(e => [...e].map(e => +e)) console.log(res)

Answer 2

您将matrix转换为一串一和零，您只需要拆分字符串并将它们转换为数字

function renderMatrix(plainMatrix) {
    var matrix = plainMatrix.result;

    var mtx = matrix.split("\n"); // mtx is now an array of strings of ones and zeros
    
    mtx = mtx.map(string => string.split('')); // mtx is now an array of arrays of number string

    mtx = mtx.map(nested => nested.map(numberString => Number(numberString))); // mtx is now what you want

}