jqueryで「THIS」のさまざまなレベルにアクセスするにはどうすればよいですか？

Question

私は以下のコードは、各内側の前Varの要素をつかむの最も効率的な方法ではありませんが、例のために...

$('.myFirstClass').each(function(i){ 
    // Here is the first 'THIS' occurrence 
    $(this).find('.mySecondClass').each(function(j){ 
     // Here is the second 'THIS' occurrence 
     // How do i access the first occurrence from here? 
    }); 
}); 

Answer 1

変数を格納する必要はありません。 jQueryのは、すでに... 2番目のパラメータで動作するはず

$(".myFirstClass").each(function(i, j){ 
    // I am represented as this or j 
    $(j).find(".mySecondClass").each(function(a, b){ 
    // I am represented as this or b 
    // I can communicate with j 
    }); 
}); 

Answer 2

店この実現。

$('.myFirstClass').each(function(i){ 
    //store this 
    var $that = $(this); 
    $(this).find('.mySecondClass').each(function(j){ 
     //$that.something 
     // How do i access the first occurrence from here? 
    }); 
}); 

Answer 3

このような何か、

$('.myFirstClass').each(function(i){ 
    var firstClassThis = this; 
    $(this).find('.mySecondClass').each(function(j){ 
     // Here is the second 'THIS' occurrence 
     // How do i access the first occurrence from here? 
     //You can use firstClassThis here due to closure. 
    }); 
}); 

Answer 4

$('.myFirstClass').each(function(i){ 
    var me = this; 
    $(this).find('.mySecondClass').each(function(j){ 
     alert($(me).attr('id')); 
    }); 
}); 

をこれを行います。