Javascript 使用公共值组合或添加到数组
我有两个对象数组。我需要将一个对象值添加到名称匹配的第二个数组中。用最少的代码完成这项工作的最有效方法是什么Javascript 使用公共值组合或添加到数组,javascript,arrays,json,object,Javascript,Arrays,Json,Object,我有两个对象数组。我需要将一个对象值添加到名称匹配的第二个数组中。用最少的代码完成这项工作的最有效方法是什么 firstArray = [ {name: "Henry", balance: 2176.90, Age: 26}, {name: "Jon", balance: 122.10, Age: 31}, {name: "Dave", balance: 258.23, Age: 42},
firstArray = [
{name: "Henry", balance: 2176.90, Age: 26},
{name: "Jon", balance: 122.10, Age: 31},
{name: "Dave", balance: 258.23, Age: 42},
{name: "Tom", balance: 591.00, Age: 19},
{name: "Mary", balance: 12.54, Age: 56},
{name: "Rick", balance: 5287.25, Age: 29},
{name: "Jane", balance: 6527.20, Age: 24}
]
secondArray = [
{user: "Henry", city: "New York", dept: "Sales"},
{user: "Vanessa", city: "New York", dept: "Sales"},
{user: "Susan", city: "Dallas", dept: "Marketing"},
{user: "Jon", city: "New York", dept: "Management"},
{user: "Dave", city: "Dallas", dept: "Marketing"}
{user: "Jay", city: "Spokane", dept: "IT"}
]
secondArray = [
{user: "Henry", city: "New York", dept: "Sales", balance: 2176.90},
{user: "Vanessa", city: "New York", dept: "Sales", balance: "N/A"},
{user: "Susan", city: "Dallas", dept: "Marketing", balance: "N/A"},
{user: "Jon", city: "New York", dept: "Management", balance: 122.10},
{user: "Dave", city: "Dallas", dept: "Marketing", balance: 258.23}
{user: "Jay", city: "Spokane", dept: "IT", balance: 591.00}
]
您需要在阵列上循环,没有更有效的方法来处理这个问题
for (var key in firstArray) {
var obj = firstArray[key];
for (var key2 in secondArray) {
obj2 = secondArray[key2];
if (obj['user'] == obj2['user']){
//merge stuff here
secondArray[key2]['balance']=obj['balance'];
break; //once we found the equal names we can skip the rest.
}
}
// ...
}
您需要在阵列上循环,没有更有效的方法来处理这个问题
for (var key in firstArray) {
var obj = firstArray[key];
for (var key2 in secondArray) {
obj2 = secondArray[key2];
if (obj['user'] == obj2['user']){
//merge stuff here
secondArray[key2]['balance']=obj['balance'];
break; //once we found the equal names we can skip the rest.
}
}
// ...
}
使用jquery怎么样?同样,可以使用$。每个循环但一般结构保持不变。使用jquery怎么样?同样,可以使用$。每个循环但一般结构保持不变。