.attr()Get the value of an attribute for the first element in the set of matched elements or set one or more attributes for every matched element. 然后官方还特别注明了 As of jQuery 1.6, the .attr() method returns undef
The difference betweenattributesandpropertiescan be important in specific situations.Before jQuery 1.6, the.attr()method sometimes took property values into account when retrieving some attributes, which could cause inconsistent behavior.As of jQuery 1.6, the.prop()method provides a way to explicitly re...
❮ jQuery HTML/CSS Methods Example Set the width attribute of an image: $("button").click(function(){ $("img").attr("width","500"); }); Try it Yourself » Definition and Usage The attr() method sets or returns attributes and values of the selected elements. ...
prop() method. 根据官方的建议:具有true 和 false 两个属性的属性,如 checked, selected 或者 disabled 使用prop(),其他的使用 attr() 到此,将 attr('checked') 改成 prop('checked') 即可修复提的 issues 了。 ^_^ 等等,貌似问题还没真正解决,为什么开头例子中 jQuery 1.8.3 和 1.9.0 使用 attr()...
The difference betweenattributesandpropertiescan be important in specific situations.Before jQuery 1.6, the.attr()method sometimes took property values into account when retrieving some attributes, which could cause inconsistent behavior.As of jQuery 1.6, the.prop()method provides a way to explicitly re...
Get the value of an attribute for the first element in the set of matched elements or set one or more attributes for every matched element. 然后官方还特别注明了 As of jQuery 1.6, the .attr() method returns undefined for attributes that have not been set.To retrieve and change DOM properti...
for a checkbox (jquery 1.6+) .attr('checked') //returns checked .prop('checked') //returns true .is(':checked') //returns true Prop() method returns Boolean value for checked, selected, disabled, readOnly..and so on while attr returns defined string. So, you can directly use .prop...
Before jQuery 1.6, the .attr() method sometimes took property values into account when retrieving some attributes, which could cause inconsistent behavior. 1. 因为在 jQuery 1.6 之前,使用 attr() 有时候会出现不一致的行为。 那么,什么时候使用attr(),什么时候使用prop()?
jQuery的.attr()方法用于获取或设置HTML元素的属性值。当使用.attr()方法获取属性值时,如果属性不存在,则返回undefined。 该方法的语法如下: 代码语言:txt 复制 $(selector).attr(attributeName) 参数说明: selector: 用于选择HTML元素的选择器。 attributeName: 属性名称。
for a checkbox (jquery 1.6+) .attr('checked') //returns checked .prop('checked') //returns true .is(':checked') //returns true Prop() method returns Boolean value for checked, selected, disabled, readOnly..and so on while attr returns defined string. So, you can directly use .prop...