从数组对象Jquery中移除对象

Remove object from array object Jquery

本文关键字：对象 Jquery 数组更新时间：2023-09-26

我创建的数组对象如下:

var numberOfSameDeficiency = [];
 for (var i = 0; i < result.length; i++) {
                    var deficiencyId = result[i].Deficiency_Id;
                    var deficiencyName = result[i].DeficiencyName;
                    //check to see if this deficiency is already in the list of available selections
                    if ($("#drpDeficiency option[value='" + deficiencyId + "']").length == 0) {
                        var option = $('<option>');
                        option.attr('value', deficiencyId);
                        option.text(deficiencyName);
                        $select.append(option);
                    }
                    else {
                        Tests = {};
                        Tests.TestId = testId;
                        Tests.DeficiencyId = deficiencyId;
                        numberOfSameDeficiency.push(Tests);
                    }
                }

我想在不同的函数中删除对象，像这样:

for (var i = 0; i < result.length; i++) {
                console.log(numberOfSameDeficiency);
                var isFound = false;
                var deficiencyId = result[i].Deficiency_Id;
                if (numberOfSameDeficiency) {
                    numberOfSameDeficiency.forEach(function (entry) {
                       if (entry.DeficiencyId != deficiencyId) {
                           isFound = true;
                        **numberOfSameDeficiency.splice(entry, 1); // Generating Error (Remove all items from array object)** 
                           return;
                       }
                    });
                    // console.log("end if");
                }
                if (!isFound) {
                    $("#drpDeficiency option[value='" + deficiencyId + "']").remove();
                }
            }

那么从数组对象中删除特定对象应该用哪一行代码呢

试试这个

for( i=myArray.length-1; i>=0; i--) {
    if( myArray[i].field == "money") myArray.splice(i,1);
}

myArray = [{name:"Alpesh", lines:"2,5,10"},
             {name:"Krunal", lines:"1,19,26,96"},
             {name:"Deep",lines:"3,9,62,36" }]
johnRemovedArray = myArray
               .filter(function (el) {
                        return el.name !== "Krunal";
                       });

创建这个原型函数:

Array.prototype.removeElement = function (el) {
    for(let i in this){
        if(this.hasOwnProperty(i))
            if(this[i] === el)
                this.splice(i, 1);
    }
}

然后调用:

let myArray = ['a','b','c','d'];
myArray.removeElement("c");

let myObj1 = {name: "Mike"},
    myObj2 = {name: "Jenny"},
    myArray = [myObj1, myObj2];
myArray.removeElement(myObj2);