使用的概念map()
与三元运算符一起(?)。以下是我们的对象数组-
let firstCustomerDetails = [ {firstName: 'John', amount: 100}, {firstName: 'David', amount: 50}, {firstName: 'Bob', amount: 80} ]; let secondCustomerDetails = [ {firstName: 'John', amount: 400}, {firstName: 'David', amount: 70}, {firstName: 'Bob', amount: 40} ];
假设我们需要按数量属性过滤对象数组。考虑数量最多的一个。
let firstCustomerDetails = [ {firstName: 'John', amount: 100}, {firstName: 'David', amount: 50}, {firstName: 'Bob', amount: 80} ]; let secondCustomerDetails = [ {firstName: 'John', amount: 400}, {firstName: 'David', amount: 70}, {firstName: 'Bob', amount: 40} ]; var output = firstCustomerDetails.map((key, position) => key.amount > secondCustomerDetails[position].amount ? key : secondCustomerDetails[position] ); console.log(output);
要运行上述程序,您需要使用以下命令-
node fileName.js.
在这里,我的文件名为demo83.js。
输出结果
这将产生以下输出-
PS C:\Users\Amit\JavaScript-code> node demo83.js [ { firstName: 'John', amount: 400 }, { firstName: 'David', amount: 70 }, { firstName: 'Bob', amount: 80 } ]