untitled

cell0.js

const map = (arr, cb) => {
    const res = [];
    for(let v of arr) {
        res.push(cb(v));
    }
    return res;
};



const c = map([1, 2, 3], v => v * 2);

const x = [[1, 2], [3, 4]].map(v => v.map(x => x * 2));

untitled.carbide.md

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