[英]looping through nested arrays
我有一个数组数组,实际上是一系列表行。
0: Array[5]
0: ""
1: ""
2: "Is there at least one teacher or other adult in this school that you can talk to if you have a problem?"
3: ""
4: ""
1: Array[5]
0: ""
1: ""
2: "Yes"
3: "No"
4: "Not sure"
2: Array[5]
0: "Grade"
1: "6th"
2: "55%"
3: "20%"
4: "25%"
如果我遇到某些内容,即“?” 我想将该行分配给新的JSON对象。 我正在使用forEach循环遍历数组,如下所示:
function parseRow(element, index, array) {
element.forEach(parseCell);
}
function parseCell(element, index, array) {
if (element.indexOf("?") > -1) { // if it is a question
//do something to tell indicate this is a question row
} else {
// table cell
}
}
我需要在我的目标中更加明确。 我有一个行值(作为数组),其中一些包含一个表定义问题,其中一些是标题行,其中一些是表行。 我想吐出一个格式化的JSON对象:
{
"question": "Is there at least...",
"Category": "Overall",
"Division" : "All",
"Yes" : "65.00%",
"No": "11.70%",
"Not Sure" : "23.30%",
},
{
"question": "Is there at least...",
"Category" : "Grade",
"Division" : "6th",
"Yes" : "65.00%",
"No": "11.70%",
"Not Sure" : "23.30%",
},
{
"question": "Is there at least...",
"Category" : "Grade",
"Division" : "7th",
"Yes" : "65.00%",
"No": "11.70%",
"Not Sure" : "23.30%",
},
JSON对象可以更嵌套,这似乎是最容易处理的构建。
您可以使用可以返回对象的map函数,以便从元素数组中获取一系列问题:
function parseRow(element, index, array) {
var questions = element.map(function(el,i){
if(el.indexOf("?") > -1){
return el;
}
});
}
这将为您提供一系列包含问题的元素。
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