Medium javascript

Count word frequency

Problem

Count occurrences of each word in "to be or not to be".

Hints

Ready — edit the code above and click Run.

const s = "to be or not to be";
const freq = {};
for (const w of s.split(" ")) freq[w] = (freq[w] || 0) + 1;
console.log(freq);

Try solving on your own first, then reveal the official answer.

Object as hash map—same idea as MongoDB $group or SQL GROUP BY.

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