The code in question is here:
(有问题的代码在这里：)
var $item = $(this).parent().parent().find('input');
What is the purpose of the dollar sign in the variable name, why not just exclude it?
(变量名中美元符号的目的是什么，为什么不排除呢？)
ask by Keith Donegan translate from so
与恶龙缠斗过久,自身亦成为恶龙；凝视深渊过久,深渊将回以凝视…
