所以我拼接了一个对象数组，首先要复制其中一个对象。这是因为有人想要“拆分”他们的订单，即为同一产品订购新订单但是发货日期不同。
无论如何，我所期望的是，假设传递的参数是“Daily Breads”和“Apple Streusel”，我在对象数组中得到第二个“Apple Streusel”，但是 printf ("CMD> ");
// scanf ("%s",buffer); // better use fgets
fgets( buffer, sizeof( buffer ), stdin );
char *args[3] = { NULL };
char *pch;
pch = strtok (buffer," ");
int i = 0;
while (pch != NULL)
{
args[i++] = pch;
pch = strtok (NULL, " ");
}
for( i = 0; i < 3; i++ )
{
if( args[i] != NULL )
{
printf( "args[%d] = %s\n", i, args[i] );
}
}
应该成为“Apple Streusel Additional”。相反，我得到的是两个名为“Apple Streusel Additional”的对象，而不仅仅是一个。
我正在修改的JSON的相关部分：
.text我的功能：
$scope.theBreadsList = [{
category: 'Daily Breads',
breads: [{
text: 'Apple Streusel',
category: 'Daily Breads',
isDaily: true,
price: 7.25,
quantity: 0,
days: ["Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sunday"],
daysNotAvailable: null,
onMenu: true,
canSlice: false,
orderDates: [],
ingredients: ["White Flour", "Honey", "Water", "Butter", "Brown Sugar", "Eggs", "Applesauce", "Apples", "White Sugar", "Yeast", "Spices", "Vanilla", "Salt"]
},
{
text: 'Honey Whole Wheat',
category: 'Daily Breads',
isDaily: true,
price: 5.65,
quantity: 0,
days: ["Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sunday"],
daysNotAvailable: null,
onMenu: true,
canSlice: true,
orderDates: [],
ingredients: ["Organic Whole Wheat Flour","Filtered Water","Honey","Yeast","Salt"],
},
{
text: 'Peasant White',
category: 'Daily Breads',
isDaily: true,
price: 5.65,
quantity: 0,
days: ["Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sunday"],
daysNotAvailable: null,
onMenu: true,
canSlice: true,
orderDates: [],
ingredients: ["Unbleached Unbromated White Flour", "Filtered Water","Honey","Yeast","Salt"]
},
{
text: 'Rolls (White or Wheat)',
category: 'Daily Breads',
isDaily: true,
price: 4.75,
quantity: 0,
days: ["Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sunday"],
daysNotAvailable: null,
onMenu: true,
canSlice: false,
orderDates: []
},
{
text: 'Seven Grain Crunch',
category: 'Daily Breads',
isDaily: true,
price: 5.95,
quantity: 0,
days: ["Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sunday"],
daysNotAvailable: null,
onMenu: true,
canSlice: true,
orderDates: [],
ingredients: ["Freshly Milled Organic Whole Wheat Flour","Seven Grain Mix (Hard & Soft Wheat, Oats, Rye, Millet, Barley, Triticale)", "Filtered Water","Honey","Yeast","Salt"]
},
{
text: 'Three Seed Healthy',
category: 'Daily Breads',
isDaily: true,
price: 6.25,
quantity: 0,
days: ["Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sunday"],
daysNotAvailable: null,
onMenu: true,
canSlice: true,
orderDates: [],
ingredients: ["Organic Whole Wheat Flour","Honey","Filtered Water","Sunflower Seeds","Sesame Seeds","Flax Seeds","Yeast","Salt"]
}]
我的电话：
function add2JSON(breadCategory,bread){
for (var i = 0; i < $scope.theBreadsList.length; i++) {
if ($scope.theBreadsList[i].category === breadCategory) {
for (var z = 0; z < $scope.theBreadsList[i].breads.length; z++) {
if ($scope.theBreadsList[i].breads[z].text === bread) {
//importante!
console.log(z);
$scope.theBreadsList[i].breads.splice(z, 0, $scope.theBreadsList[i].breads[z]);
console.log($scope.theBreadsList, $scope.theBreadsList[i].breads[z], $scope.theBreadsList[i].breads[z+1]);
$scope.theBreadsList[i].breads[z+1].text = $scope.theBreadsList[i].breads[z+1].text + " Additional";
$scope.theBreadsList[i].breads[z+1].onMenu = false;
return;
}
}
}
}
}
答案 0 :(得分：3)
您正在修改在原始数组和修改数组中引用的对象的对象属性。
您需要深度复制插入的数组元素。当您使用AngularJS时，您可以使用angular.copy，如下所示：
替换此行：
$scope.theBreadsList[i].breads.splice(z, 0,
$scope.theBreadsList[i].breads[z]);
使用：
$scope.theBreadsList[i].breads.splice(z, 0,
angular.copy($scope.theBreadsList[i].breads[z]));
答案 1 :(得分：0)
我会选择不同的方法。类似的东西：
var arr = $scope.theBreadsList; // just to ease the example
function add2JSON(breadCategory, bread) {
var cat = arr.filter(function(c) { return c.category === breadCategory; })[0];
var originalBread;
var isAdditional = cat.breads.some(function(b) {
if (b.text === bread) {
originalBread = b;
return true;
}
return false;
});
if (isAdditional) {
var newBread = Object.assign({}, originalBread, {
text: originalBread.text + ' (Additional)'
});
cat.breads.push(newBread);
} else {
// TODO: implement the case where it not exists already
}
}
add2JSON('Daily Breads', 'Apple Streusel');
查看此工作DEMO
答案 2 :(得分：0)
您可以使用
制作副本c = JSON.parse(JSON.stringify(b));
并根据需要插入。
var $scope = {};
$scope.theBreadsList = [{ category: 'Daily Breads', breads: [{ text: 'Apple Streusel', category: 'Daily Breads', isDaily: true, price: 7.25, quantity: 0, days: ["Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sunday"], daysNotAvailable: null, onMenu: true, canSlice: false, orderDates: [], ingredients: ["White Flour", "Honey", "Water", "Butter", "Brown Sugar", "Eggs", "Applesauce", "Apples", "White Sugar", "Yeast", "Spices", "Vanilla", "Salt"] }, { text: 'Honey Whole Wheat', category: 'Daily Breads', isDaily: true, price: 5.65, quantity: 0, days: ["Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sunday"], daysNotAvailable: null, onMenu: true, canSlice: true, orderDates: [], ingredients: ["Organic Whole Wheat Flour", "Filtered Water", "Honey", "Yeast", "Salt"], }, { text: 'Peasant White', category: 'Daily Breads', isDaily: true, price: 5.65, quantity: 0, days: ["Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sunday"], daysNotAvailable: null, onMenu: true, canSlice: true, orderDates: [], ingredients: ["Unbleached Unbromated White Flour", "Filtered Water", "Honey", "Yeast", "Salt"] }, { text: 'Rolls (White or Wheat)', category: 'Daily Breads', isDaily: true, price: 4.75, quantity: 0, days: ["Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sunday"], daysNotAvailable: null, onMenu: true, canSlice: false, orderDates: [] }, { text: 'Seven Grain Crunch', category: 'Daily Breads', isDaily: true, price: 5.95, quantity: 0, days: ["Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sunday"], daysNotAvailable: null, onMenu: true, canSlice: true, orderDates: [], ingredients: ["Freshly Milled Organic Whole Wheat Flour", "Seven Grain Mix (Hard & Soft Wheat, Oats, Rye, Millet, Barley, Triticale)", "Filtered Water", "Honey", "Yeast", "Salt"] }, { text: 'Three Seed Healthy', category: 'Daily Breads', isDaily: true, price: 6.25, quantity: 0, days: ["Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sunday"], daysNotAvailable: null, onMenu: true, canSlice: true, orderDates: [], ingredients: ["Organic Whole Wheat Flour", "Honey", "Filtered Water", "Sunflower Seeds", "Sesame Seeds", "Flax Seeds", "Yeast", "Salt"] }] }];
function add2JSON(breadCategory, bread) {
$scope.theBreadsList.forEach(function (a) {
var c, p;
if (a.category === breadCategory) {
a.breads.some(function (b, i) {
if (b.text === bread) {
p = i,
c = JSON.parse(JSON.stringify(b));
c.text += " Additional";
c.onMenu = false;
return true;
}
}) && a.breads.splice(p, 0, c);
}
});
}
add2JSON("Daily Breads", "Apple Streusel");
document.write('<pre>' + JSON.stringify($scope, 0, 4) + '</pre>');