如何通过javascript从表格中删除第一个单元格的边框? (最后是其他所示的)
var firstRow = document.getElementById("tbl1").rows[0].cells;
//Get first cell
//firstRow[0].style.REMOVE CELL BORDER
//Get 2nd row of tbl1
var secRow = document.getElementById("tbl1").rows[1].cells;
//Get 5th cell
secRow[4].style.backgroundColor = 'darkBlue';
//Get 4th row of tbl1
var fouthRow = document.getElementById("tbl1").rows[3].cells;
//Get 3rd, 4th and 5th cell
fouthRow[2].style.backgroundColor = 'darkBlue';
fouthRow[3].style.backgroundColor = 'darkBlue';
fouthRow[4].style.backgroundColor = 'darkBlue';
//Get 7th row of tbl1
var seventhRow = document.getElementById("tbl1").rows[6].cells;
//Get 2nd, 3rd cell
seventhRow[1].style.backgroundColor = 'darkBlue';
seventhRow[2].style.backgroundColor = 'darkBlue';
答案 0 :(得分:1)
就我个人而言,我认为您应该寻找比当前硬编码版本更动态的方式。
这是一个简单的onclick
和一个预先选择的功能版本:
// pre removed version
function rmPre(r,c) {
var tbl = document.getElementById("tbl1");
// remove border
tbl.rows[r].cells[c].style.border = "0px";
// remove background
tbl.rows[r].cells[c].style.background = "transparent";
}
// onclick code
function rm(e) {
// remove border
this.style.border = "0px";
// remove background
this.style.background = "transparent";
}
window.onload = function() {
var tbl = document.querySelector("#tbl1");
var td = tbl.querySelectorAll("td");
var i, max = td.length
for(i=0;i<max;i++) {
td[i].addEventListener("click",rm,false);
}
// remove onload r1,c1 and r3,c2
rmPre(0,0);
rmPre(2,1);
}
#tbl1 td {
padding:0.5em;
background:#e2edff;
border:1px solid #000;
}
<p>
Click a cell to remove. r1,c1 and r3,c2 already removed
</p>
<table id="tbl1">
<tr>
<td>r1,c1</td><td>r1,c2</td><td>r1,c3</td>
</tr>
<tr>
<td>r2,c1</td><td>r2,c2</td><td>r2,c3</td>
</tr>
<tr>
<td>r3,c1</td><td>r3,c2</td><td>r3,c3</td>
</tr>
</table>
答案 1 :(得分:1)
针对您的问题,我提出了2个想法。
第一个:
如果您不关心单元格的对齐方式(但我相信您是..)
您可以像这样定位td
:
const myTable = document.querySelector('#myTable tbody')
const myRows = document.querySelectorAll('#myTable tr')
const childToRemove = myRows[0].children[0]
并按如下所示将其删除:
myRows[0].removeChild(childToRemove)
但是,为了保持UI完整,我可能会采用以下解决方案:
const myTable = document.querySelector('#myTable tbody')
const myRows = document.querySelectorAll('#myTable tr')
const childToRemove = myRows[0].children[0]
childToRemove.style.borderColor = 'white'
childToRemove.style.color = 'white'
childToRemove.style.pointerEvents = 'none'
这是一个JSfiddle:https://jsfiddle.net/mkbctrlll/Lumjcy7d/35/
希望这会有所帮助