Can we transform two arrays into a specific format so I can create my D3 graph?
Here are the two arrays I have:
date = ["sept,09 2015","sept, 10 2015","sept, 11 2015"]
likes = [2,4,5]
I need to convert them to this format:
[{ date: '...', likes: '...'},
{ date: '...', likes: '...'}]
A straightforward approach to achieve this is:
dates = ["sept,09 2015","sept, 10 2015","sept, 11 2015"];
likes = [2,4,5];
result = [];
if (dates.length == likes.length){
for (i = 0; i < dates.length; i++){
result.push({
date: dates[i],
likes: likes[i]
});
}
}
It's important to ensure that both arrays have the same length to prevent accessing out of bounds indexes.
To achieve this, a straightforward method would involve utilizing a basic for loop.
let mergedArray = [];
for (let i = 0, length = dates.length; i < length; i++) {
mergedArray.push({
date: dates[i],
likes: likeCount[i]
});
}
It is crucial to note that this approach is only applicable if both arrays are of identical lengths. In cases where they differ, the maximum feasible outcome can still be obtained by considering the shorter array length.
let mergedArray = [];
let shortestLength = Math.min(dates.length, likeCount.length);
for (let i = 0; i < shortestLength; i++) {
mergedArray.push({
date: dates[i],
like: likeCount[i]
});
}
If the lengths are equal, you have the option to utilize Array.prototype.map():
let newResult = likes.map(function(value, position){
return { date: dates[position], like: value };
});
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