Uncaught TypeError Cannot read property 'hasOwnProperty' of

1、错误描述

 

jquery-1.9.1.min.js:69 Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check https://xhr.spec.whatwg.org/.
send @ jquery-1.9.1.min.js:69
public.js:430 
Uncaught TypeError: Cannot read property 'hasOwnProperty' of null
    
at Object.<anonymous>  
at Function.each (jquery-1.9.1.min.js:35)
      
at HTMLTableElement.loadComplete    
at Object.success (jquery.jqGrid.src.js:2012)
    
at c (jquery-1.9.1.min.js:35)
    
at Object.fireWith [as resolveWith] (jquery-1.9.1.min.js:35)
    
at k (jquery-1.9.1.min.js:69)
    
at XMLHttpRequest.r (jquery-1.9.1.min.js:69)
porder.js:769 payType:1

Uncaught TypeError: Cannot read property 'hasOwnProperty' of null
    
at Object.<anonymous>  
at Function.each (jquery-1.9.1.min.js:35)
      
at HTMLTableElement.loadComplete    
at Object.success (jquery.jqGrid.src.js:2012)
    
at c (jquery-1.9.1.min.js:35)
    
at Object.fireWith [as resolveWith] (jquery-1.9.1.min.js:35)
    
at k (jquery-1.9.1.min.js:69)
    
at XMLHttpRequest.r (jquery-1.9.1.min.js:69)

2、错误原因

 

      hasOwnProperty()函数用于指示一个对象自身(不包括原型链)是否具有指定名称的属性,一般语法是:

     对象.hasOwnProperty(属性值),如果对象为null,就会报错;在判断之前先判断对象是否为空

 

3、解决办法

if(对象 != null)

{

对象.hasOwnProperty(属性值)

}

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转载自www.cnblogs.com/odejsjhshw/p/10374263.html
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