JSLite - node properties

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pluck

Get the attribute value of each element in the object collection.

$("#box").pluck("nodeName") //⇒ ["DIV"]
$("#box").pluck("nextElementSibling") //⇒ <div class="boxs">1234567890</div>
$("#box").pluck("children") //⇒ [HTMLCollection[4]]

attr

Read or set dom attributes.

$(".button").attr({"class":"","style":"background:red"}) //⇒ self 设置红色清空class
$(".button").attr("class","name")  //⇒ self 设置class替换之前的
$(".button").attr("class")  //⇒ string 获取class属性值

removeAttr

Moves the specified attribute of all elements in the current object collection.

$("#box").removeAttr("class") //⇒ self 移除class

prop

Read or set dom properties. It takes precedence over attr when reading attribute values ​​because these attribute values ​​will change due to user interaction, such as checked and selected.

<input class="taiyang" id="check1" type="checkbox" checked="checked">
<input class="yaotaiyang" id="check2" type="checkbox">
$("#check1").attr("checked"); //=> "checked"
$("#check1").prop("checked"); //=> "true"
$("#check2").attr("checked"); //=> "false"
$("#check2").prop("checked"); //=> "false"
$("input[type="checkbox"]").prop("type",function(index,oldvalue){
console.log(index+"|"+oldvalue);
});
//=> 0|checkbox
//=> 1|checkbox
$("input[type="checkbox"]").prop("className",function(index,oldvalue){
console.log(index+"|"+oldvalue);
});
//=> 0|taiyang
//=> 1|yaotaiyang

removeProp

Removes a property for the matching element in the collection. removeProp() method is used to delete the property set set by the .prop() method.

Note: Do not use this method to delete native properties (properties), such as checked, disabled, or selected. This will completely remove the attribute; once removed, it cannot be added to the element again. Use .prop() to set these properties to false instead.

<p id="n2" class="demo test" data-key="UUID" data_value="1235456465">CodePlayer</p>

var $n2 = $("#n2");
$n2.prop("prop_a", "CodePlayer");
$n2.prop("prop_b", { name: "CodePlayer", age: 20 } );

console.log($n2.prop("prop_a")) //⇒ CodePlayer
console.log($n2.prop("prop_b")) //⇒ Object {name: "CodePlayer", age: 20}

$n2.removeProp("data-key");
$n2.prop("data-key") //⇒ undefined
$n2.attr("data-key") //⇒ "UUID"