JavaScript如何获取JSON数组中的所有“名称”值？
假设以下是我们的JSON数组-
var details = [
{
"customerDetails": [
{
"customerName": "John Smith",
"customerCountryName": "US"
}
]
},
{
"customerDetails": [
{
"customerName": "David Miller",
"customerCountryName": "AUS"
}
]
},
{
"customerDetails": [
{
"customerName": "Bob Taylor",
"customerCountryName": "UK"
}
]
}
]要仅获取CustomerName值，请使用map()-
示例
var details = [
{
"customerDetails": [
{
"customerName": "John Smith",
"customerCountryName": "US"
}
]
},
{
"customerDetails": [
{
"customerName": "David Miller",
"customerCountryName": "AUS"
}
]
},
{
"customerDetails": [
{
"customerName": "Bob Taylor",
"customerCountryName": "UK"
}
]
}
]
var allCustomerName = details.map(obj=>
obj.customerDetails[0].customerName);
console.log(allCustomerName);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demo206.js。
输出结果
PS C:\Users\Amit\javascript-code> node demo206.js [ 'John Smith', 'David Miller', 'Bob Taylor' ]
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