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Firefox 浏览器是否不承认表格. cells?
原标题:Does Firefox browser not recognize table.cells?

我有以下 JavaScript 代码。


var myCellCollection = document.getElementById( myTbl ).cells;

这在 IE 中效果良好, 它返回一个表格单元格集。 但相同的行返回 Firefox 中的“ 未定义 ” 。 我使用 IE 9 和 Firefox 12 。

最佳回答

您应该使用 document. getEplementById (" MyTbl").getEplementsByTagName (td) ;

问题回答

今天在移植一个更老的互联网探索者应用程序时 陷入了这个困境。

Warning:
container.getElementsByTagName( tagname ) returns ALL the elements inside container that matches the query tagname.

Thus table.getElementsByTagName( td ) will return all td s including those of nested tables!
However table.cells doesn t do that (where implemented).

而且,显然,它不会匹配 < code>th 。 因此这些单元格不在返回的收藏中, 导致如何解决相对于 td s 的顺序问题...

如果要将 DOM-order 中的 table. cells (返回 th /code > 的预期功能舍姆,我写了以下简单功能:

function tableCells(t){
   if(t.cells) return t.cells; // use internal routine when supported
   for(var a=[], r=t.rows, y=0, c, x; t=r[y++];){
      for(c=t.cells, x=0; t=c[x++]; a.push(t));
   } 
   return a;
}

另选 , 使用如果- else 包单返回到相同大小 exactly , 但上述 gzips 较小 。 PS : 我尝试了 conccaccatt - 输入 accod. rows[X]. ells , 但效果不佳( 虽然我感觉不安全)

Usage example:
var identifier = tableCells( /*reference to table (or thead/tbody/tfoot) here*/ );
It will return an array (not a live collection) like the result from table.cells.

希望这能帮到某人





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