Three ways to get tr td in JavaScript (graphic tutorial)-JS Tutorial-php.cn

This article mainly introduces three ways to obtain tr td using JavaScript. You can check the detailed explanation below for the specific operation steps. Interested friends can refer to it.

/* The first one, native js, first get the table and then the tr tag, and then traverse the td */

// $('#selectIds').val(""); // var table = document.getElementById("tb_table");//获取第一个表格 // var array = table.getElementsByTagName("tr");//所有tr // for(var i = 1; i < array.length; i++) { // var id = array[i].children; // var idtext = id[1].innerHTML; // if(i == 1){ // $('#selectIds').val($('#selectIds').val() + "" + idtext); // }else{ // $('#selectIds').val($('#selectIds').val() + "," + idtext); // } // }

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/* The jQuery way of writing, get the tr and then traverse all the td . Note that the value obtained by td is .text(); */

// $('#selectIds').val(""); // var isFirst = true; // $("#tb_table").find("tr").each(function(){ // var tdArr = $(this).children(); // var idtext = tdArr.eq(1).text(); // if(idtext != '人员ID'){ // if(isFirst){ // $('#selectIds').val($('#selectIds').val() + "" + idtext); // isFirst = false // }else{ // $('#selectIds').val($('#selectIds').val() + "," + idtext); // } // console.log("idtext",idtext); // } // })

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/* Native js obtains all rows, and then obtains each cell*/

// var table = document.getElementById("tb_table"); // var rows = table.rows;//获取所有行 // console.log("lenth",rows.length) // // for(var i=1; i < rows.length; i++){ // var row = rows[i];//获取每一行 // var id = row.cells[1].innerHTML;//获取具体单元格 // console.log("id",id) // }

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Summary:

$(this).children().eq(1).text() gets the displayed value

$(this).children(). eq(1).html() gets all the content between

$('.trSelected',grid).find("td").eq( 7).text(); gets the content of a selected row

Set value: $('.trSelected',grid).find("td").eq(7).text(' 'Set content'')

xxx.innerHTML; is the value of the object obtained in js.

Traverse the table

$("#grid tr").each(function() {
().eq(1).text());
});

Use JavaScript to traverse

function load(){ var tab=document.getElementById("grid"); var rows=tab.rows; alert(rows.length); for(var i=0;i
        
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The above is what I compiled for everyone, I hope it will be helpful to everyone in the future.

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