如何将事件添加到板上的单元格?
我有一个9x9的网格,我想向他们添加一个事件,例如,这是我的HTML网格的一部分:

<div class="container">
    <div class="dad-board">
      <div class="dad-row">
        <div class="dad-cell">
            <input type="number"  data-column="0" data-line="0">
        </div>
        <div class="dad-cell">
            <input type="number"  data-column="1" data-line="0">
        </div>
        <div class="dad-cell">
            <input type="number"  data-column="2" data-line="0">
        </div>
        <div class="dad-cell">
            <input type="number"  data-column="3" data-line="0">
        </div>
        <div class="dad-cell">
            <input type="number"  data-column="4" data-line="0">
        </div>
        <div class="dad-cell">
            <input type="number"  data-column="5" data-line="0">
        </div>
        <div class="dad-cell">
            <input type="number"  data-column="6" data-line="0">
        </div>
        <div class="dad-cell">
            <input type="number"  data-column="7" data-line="0">
        </div>
        <div class="dad-cell">
            <input type="number"  data-column="8" data-line="0">
        </div>
        ...
      </div>
    </div>


现在在jQuery中,我想做这样的事情:

(function() {
    'use strict'


    $('#dad-board > dad-cell').focusout(function(){

        if($(this).text()>0 && $(this).text()<10){

            $(this).addClass('with-value');
        }else{
            $(this).removeClass('with-value');
        }

    });
}());

最佳答案

两件事情:

$('#dad-board > dad-cell')中,类名称应为.dad-cell

.dad-celldiv,因此它们没有focusout事件。我认为您的意思是$('#dad-board > .dad-cell input')

为了使您当前的代码正常工作,您还必须进行一些调整:

$('#dad-board > .dad-cell input').focusout(function(){
    //as we're talking about input fields, the value is read with val(), not text()
    //and as you're gonna evaluate it as an integer, lets convert the value to integer
    var value=parseInt($(this).val());
    if(!isNaN(value)&&value>0 && value<10){
        //you might want to set with-value to the <div>, not the input
        $(this).parent().addClass('with-value');
    }else{
        //you might want to set with-value to the <div>, not the input
        $(this).parent().removeClass('with-value');
    }
});

09-10 11:49