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Showing content from https://webplatform.github.io/docs/html/attributes/cols below:

cols · WebPlatform Docs

cols

## Examples

This example uses the COLS attribute and the cols property to set the number of columns in HTML and retrieve the number of columns in script.

<SCRIPT>
function checkCols(oObject)
{
    var iColumns = oObject.cols;
    alert (iColumns);
}
</SCRIPT>
</HEAD>
<BODY>
<TABLE ID=oTable BORDER COLS=3 onclick="checkCols(this)">
<TR><TD>Column 1</TD><TD>Column 2</TD><TD>Column 3</TD></TR>
</TABLE>

View live example

Notes Remarks

Specifying this number can speed up the processing of the table. Windows Internet Explorer 8 will only render tables up to 1000 columns. To force Windows Internet Explorer 7 rendering mode, see How Do I Take Advantage of the New Features in Internet Explorer 8.

Syntax Standards information

Document Object Model (DOM) Level 1 Specification, Section 2.5.5