Is there a way to transform this: [[a1, b1], [a2, b2]] into this format?
[{x1: a1, y2: b1}, {x2: a2, y2: b2}]Please note that the properties x1 and x2 are newly introduced with values a1, b1, etc.
I attempted to achieve this with the following code snippet:
formatData.map((data, index) => {
const obj = {
dataX: data[index][0],
dataY: data[index][2]
}
data = obj
}
However, I encountered a roadblock in the process.
Using a basic for loop to achieve the desired result
var data = [["key1", "value1"], ["key2", "value2"]];
var result = [];
var keys = ['a','b','c'];//...
for(var i in data){
var obj = {};
for(var j in data[i]){
obj[keys[j]+(parseInt(i)+1)] = data[i][j];
}
result.push(obj);
}
console.log(result);To utilize the array mapping method, you can follow the example code snippet below
var data = [['apple', 'red'], ['banana', 'yellow']];
data.map(function(item,index){
var result = {};
result['key'+(index+1)]= item[0];
result['value'+(index+1)]= item[1];
return result;
});
//Output: [{"key1":"apple","value1":"red"},{"key2":"banana","value2":"yellow"}]
Utilize the `forEach` method
var array = [
['a1', 'b1'],
['a2', 'b2']
];
var temp = []
array.forEach(function(item, index) {
var obj = {};
obj['x' + 1] = item[0];
obj['y' + 1] = item[1];
temp.push(obj);
})
console.log(temp)To create new objects, you can utilize mapping of values and utilize the Object.assign method.
var keys = ['x', 'y'],
data = [['a1', 'b1'], ['a2', 'b2']],
result = data.map(a => Object.assign(...keys.map((k, i) => ({ [k]: a[i] }))));
console.log(result);You can specify the keys and corresponding indices in an object.
var keys = { x: 0, y: 2 },
data = [['a1', 'b1', 'c1'], ['a2', 'b2', 'c2']],
result = data.map(a => Object.assign(...Object
.keys(keys)
.map(k => ({ [k]: a[keys[k]] }))
));
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