将JSON对象拆分为批处理Node.js
在发布到数据存储层之前,我想使用Node.js应用程序将结果的JSON对象分解成更小的批。JSON对象的结构是将JSON对象拆分为批处理Node.js,json,node.js,split,Json,Node.js,Split,在发布到数据存储层之前,我想使用Node.js应用程序将结果的JSON对象分解成更小的批。JSON对象的结构是 { "results": [ { "fieldA": "valueA", "fieldB": "valueB" }, { "fieldC": "valueC", "fieldD": "valueD" }, { "fieldE": "valueE", "fieldF":
{
"results": [
{
"fieldA": "valueA",
"fieldB": "valueB"
},
{
"fieldC": "valueC",
"fieldD": "valueD"
},
{
"fieldE": "valueE",
"fieldF": "valueF"
},
....and so on, repeating 1000s of times
]
}
结果数组可能包含1000个对象。我如何获取结果,并将其拆分为批次,每个结果数组包含不超过10个对象?然后我会分别调用REST来发布成批的结果。我希望JSON结构保持不变,但将结果拆分为每个结果数组10个对象的批处理
非常感谢,好的。例如,关于您的评论,这里是:
//The backslashes are just to escape the new lines
var resultsJson = '{\
"results": [\
{\
"fieldA": "valueA",\
"fieldB": "valueB"\
},\
{\
"fieldC": "valueC",\
"fieldD": "valueD"\
},\
{\
"fieldE": "valueE",\
"fieldF": "valueF"\
}\
]\
}'
var resultsArr = JSON.parse(resultsJson).results;
var i,j,tempArr;
var chunk = 2; //The chunk size you want
for (i=0,j=resultsArr.length; i<j; i+=chunk) {
tempArray = resultsArr.slice(i,i+chunk);
// do whatever. for test uncomment next line
//console.log(tempArray);
}
//反斜杠只是为了转义新行
var resultsJson={\
“结果”:[\
{\
“fieldA”:“valueA”\
“字段B”:“值B”\
},\
{\
“fieldC”:“valueC”\
“现场”:“有价值”\
},\
{\
“fieldE”:“valueE”\
“fieldF”:“valueF”\
}\
]\
}'
var resultsArr=JSON.parse(resultsJson).results;
变量i,j,tempArr;
var=2//您想要的块大小
对于(i=0,j=resultsArr.length;i)您不想对其进行JSON.parse,因为它会影响应用程序的性能?您能举个例子说明如何做到这一点吗?