我的解决方案，使用es6:

var table = document.getElementById('mytab1');

var data = [...table.rows].map(row => [...row.cells].map(td => td.innerText));

console.log(data)

引用: https://developer.mozilla.org/pt-BR/docs/Web/API/HTMLCollection

es6:

const table = document.getElementById('some-table');
const cells = table.getElementsByTagName('td');

for (let cell of cells) {
   // do something with cell here
}

早期版本:

var table = document.getElementById('some-table');
var cells = table.getElementsByTagName('td');
for ( var i in cells ) {
   // do something with cells[i]
}

来源:https://developer.mozilla.org/en-US/docs/Web/API/Element/getElementsByTagName

如果你想遍历每一行(<tr>)，知道/识别行(<tr>)，并遍历每行(<tr>)的每一列(<td>)，那么这就是要走的路。

var table = document.getElementById("mytab1");
for (var i = 0, row; row = table.rows[i]; i++) {
   //iterate through rows
   //rows would be accessed using the "row" variable assigned in the for loop
   for (var j = 0, col; col = row.cells[j]; j++) {
     //iterate through columns
     //columns would be accessed using the "col" variable assigned in the for loop
   }  
}

如果您只想遍历单元格(<td>)，忽略您所在的行，那么可以这样做。

var table = document.getElementById("mytab1");
for (var i = 0, cell; cell = table.cells[i]; i++) {
     //iterate through cells
     //cells would be accessed using the "cell" variable assigned in the for loop
}

这个解决方案对我来说非常有效

var table = document.getElementById("myTable").rows;
var y;
for(i = 0; i < # of rows; i++)
{    for(j = 0; j < # of columns; j++)
     {
         y = table[i].cells;
         //do something with cells in a row
         y[j].innerHTML = "";
     }
}

Try

for (let row of mytab1.rows) 
{
    for(let cell of row.cells) 
    {
       let val = cell.innerText; // your code below
    }
}

for （let row of mytab1.rows） { for（let cell of row.cells） { console.log（cell.innerText） } } <div id=“myTabDiv”> <表名=“mytab” id=“mytab1”> <tr> <td>Col1 Val1</td> <td>Col2 Val2</td> </tr> <tr> <td>Col1 Val3</td> <td>Col2 Val4</td> </tr> </table> </div>

(《让我排》[let[我]排][.. mytab1]。 { 用于(let [j,cell] [.. row.cells].entries() { 控制台(“[$ [$]，$ [j]]] = ${cell.innerText}”) 的 的 < div id = " myTabDiv > <table . the name="mytab" id="mytab1"> < tr > < td > col1 Val1 < / td > < td > col2 Val2 < / td > < / tr > < tr > < td > col1 Val3 < / td > < td > col2 Val4 < / td > < / tr > - < table > < / div >

如果你想要一个函数式的样式，像这样:

    const table = document.getElementById("mytab1");
    const cells = table.rows.toArray()
                  .flatMap(row => row.cells.toArray())
                  .map(cell => cell.innerHTML); //["col1 Val1", "col2 Val2", "col1 Val3", "col2 Val4"]

你可以修改HTMLCollection的原型对象(允许以类似于c#中的扩展方法的方式使用)，并嵌入一个将集合转换为数组的函数，允许使用具有上述风格的高阶函数(类似于c#中的linq风格):

    Object.defineProperty(HTMLCollection.prototype, "toArray", {
        value: function toArray() {
            return Array.prototype.slice.call(this, 0);
        },
        writable: true,
        configurable: true
    });