I just created a massive dataset of all the AI generated metadata of the videos of the WeAreDeveloper World Congress" and I wanted to extract only the tags.
The dataset is a huge array with each item containing a description, generated title, an array of tags, the original and their title, like this:
{
"description": "The talk begins with an introduction to Twilio…",
"generatedtitle: "Enhancing Developer Experience: Strategies… ",
"tags": ["Twilio", "DeveloperExperience", "CognitiveJourney"],
"title": "Diving into Developer Experience"
}
What I wanted was an alphabetical lost of all the tags in the whole dataset, and this is a one-liner if you use flatMap()
:
data.flatMap(d => d.tags);
You can sort them alphabetically with sort()
:
data.flatMap(d => d.tags).sort();
And you can de-dupe the data and only get unique tags when you use Set()
:
new Set(data.flatMap(d => d.tags).sort());
You can try this in this codepen.
Top comments (2)
Who will tell Christian that flatMap is actually a loop? :)
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