我想知道是否可以规范化这样的JSON:
{
"rows": [{
"cells": [{
"value": "Column Name 1"
},
{
"value": "Column Name 2"
},
{
"value": "Column Name 3"
},
{
"value": "Column Name 4"
}
]
},
{
"cells": [{
"value": "Second Row Thing1"
},
{
"value": "Second Row Thing2"
},
{
"value": "Second Row Thing3"
},
{
"value": "Second Row Thing4"
}
]
},
{
"cells": [{
"value": "Third Row Thing1"
},
{
"value": "Third Row Thing2"
},
{
"value": "Third Row Thing3"
},
{
"value": "Third Row Thing4"
}
]
}
]
}
进入如此不错的格式:
{
"rows": [{
"Column Name 1": "Second Row Thing1"
"Column Name 2": "Second Row Thing1"
"Column Name 3": "Second Row Thing1"
"Column Name 4": "Second Row Thing1"
},
{
"Column Name 1": "Third Row Thing1"
"Column Name 2": "Third Row Thing1"
"Column Name 3": "Third Row Thing1"
"Column Name 4": "Third Row Thing1"
}
]
}
基本上我想把第一行的数据蚂蚁当作列名来对待它。然后使用这些列名作为行对象中键的名称。是否有可能用" normalizr"?做这样的事情?或者我应该深入研究" map"," foreach"等数组的东西? :)
答案 0 :(得分:0)
你真的不需要Normalizr(你不应该使用它,因为它不会工作)。 Normalizr用于嵌套数据:引用其他实体的实体(如嵌入在推文中的用户)。
Map / Reduce非常适合这样的事情。这是一个完全符合您要求的片段。
const data = { "rows": [
{ "cells": [{ "value": "Column Name 1" }, { "value": "Column Name 2" }, { "value": "Column Name 3" }, { "value": "Column Name 4" } ]},
{ "cells": [{ "value": "Second Row Thing1" }, { "value": "Second Row Thing2" }, { "value": "Second Row Thing3" }, { "value": "Second Row Thing4" } ] },
{ "cells": [{ "value": "Third Row Thing1" }, { "value": "Third Row Thing2" }, { "value": "Third Row Thing3" }, { "value": "Third Row Thing4" } ] }
]};
// Get an array of the values of the first row
const columns = data.rows[0].cells.map(({ value }) => value);
// slice = take all rows except the first
// mapp each array of cells
const normalizedData = data.rows.slice(1).map(({ cells }) => {
// reduce = converts the array of cells into an object map
return cells.reduce((memo, { value }, i) => {
memo[columns[i]] = value;
return memo;
}, {});
});
console.log(JSON.stringify(normalizedData, null, 2));