The json array deletes an object, and the length of the data returned is still the original length.

A json array that deletes the specified object through splice, and the final returned array length is the original length, but the original data is replaced by []. The
code is as follows:
table.on ("tool (sampleList)", function (obj) {

) 
            var data = obj.data;
            if (obj.event === "del") {
                layer.confirm("" + "<span style="color:red;">" + data.name + "</span>" + "", function (index) {
                    obj.del();
                    for(var i=0;i<infoList.length;iPP){
                        if(infoList[i].name==data.name){
                            infoList.splice(i,1);
                        }

                    }
                    $("-sharpinstrumentPurchaseInfoList").val(JSON.stringify(infoList));
                    layer.close(index);
                });
            }
        })
        
        :

clipboard.png
:
[{"page":1,"limit":10,"displayStart":0,"flag":0,"userId":null,"userType":0,"id":14,"purchaseId":5,"name":"111","specification":"","unit":"","price":null,"num":null,"generatingUnit":"","LAY_TABLE_INDEX":0},{"page":1,"limit":10,"displayStart":0,"flag":0,"userId":null,"userType":0,"id":15,"purchaseId":5,"name":"sjh","specification":"","unit":"","price":null,"num":null,"generatingUnit":"","LAY_TABLE_INDEX":1},{"page":1,"limit":10,"displayStart":0,"flag":0,"userId":null,"userType":0,"id":16,"purchaseId":5,"name":"222","specification":"","unit":"","price":null,"num":null,"generatingUnit":"","LAY_TABLE_INDEX":2},{"page":1,"limit":10,"displayStart":0,"flag":0,"userId":null,"userType":0,"id":17,"purchaseId":5,"name":"333","specification":"","unit":"","price":null,"num":null,"generatingUnit":"","LAY_TABLE_INDEX":3}]
:

clipboard.png
data are as follows:
{[], []}

Html javascript
Apr.27,2022

I tried it with your code, but there was no problem. By the way, I wrote a

myself. 
var newArr = infoList.filter(function(item) {
        return item.name != "111";
    });

there is something wrong with your code, for loop, and then you delete splice, the length of the array will change, but I will still increase normally
if you want to delete the array with for, you should delete it from back to front 





<script>
//     



/*
  :     
  :   
*/

const a = {name: 'wss', age: '16',sex: 'man'}


// 
// let b = a

// console.log(a,'') // {name: 'wss', age: '16',sex: 'man'}
// console.log(b, '') // {name: 'wss', age: '16',sex: 'man'}
// console.log('') // 
// b.age = '17'
// console.log(a, '') // {name: 'wss', age: '17',sex: 'man'}
// console.log(b, '') // {name: 'wss', age: '17',sex: 'man'}


// 3     
  // let {...c} = a  //  
  // let c = Object.assign({}, a) // 

  var clone = function (obj) { // 
      return JSON.parse(JSON.stringify(obj));
  }

  let c = clone(a)

  console.log(a,'') // {name: 'wss', age: '16',sex: 'man'}
  console.log(c, '') // {name: 'wss', age: '16',sex: 'man'}
  console.log('') // 
  c.age = '17'
  console.log(a, '') // {name: 'wss', age: '16',sex: 'man'}
  console.log(c, '') // {name: 'wss', age: '17',sex: 'man'}
</script>

Previous: DllPlugin packaged files do not decrease

Next: The results of selector and find in jQuery are different?

css mysql arrays josn react html typescript webpack npm sass R objective-c .net sql-server jquery python-3.x angularjs django angular excel regex iphone ajax linux xml pandas vba spring database wordpress string wpf xcode windows bash postgresql oracle multithreading eclipse list firebase algorithm macos forms image scala visual-studio azure bootstrap spring-boot react-native python-2.7 docker performance function winforms matlab powershell apache dataframe api sqlite numpy rest shell selenium flutter dart maven loops qt swing android-studio csv express file class tensorflow sorting codeigniter perl
© 2021 CodesHelper
Advertising Contact us About us
Menu