javascript - 如何将标题附加到数组中的元素？

Question

如何迭代所有“选择”元素并从第一天到第三天按正确的顺序附加它们的标题？目前它只显示所有元素上的最后一个(thirdDay)。非常感谢您的帮助!

var firstDay = "First day";
var secondDay = "Second day";
var thirdDay = "Third day";

var days = [firstDay, secondDay, thirdDay];
var select = $(".dayNumber");

for(var i=0; i<days.length; i++) {
    select.attr('title', days[i]);
}

Answer 1

您可以使用$.fn.each而不是 for 循环:

var firstDay = "First day";
var secondDay = "Second day";
var thirdDay = "Third day";

var days = [firstDay, secondDay, thirdDay];
var select = $(".dayNumber");

select.each(function(index) {
  $(this).attr('title', days[index])
});