Jack Jackson 892a62f4e5 Add first PR check (#1)
To be followed by tests and `npm run build`, obviously!

Reviewed-on: #1
Co-authored-by: Jack Jackson <scubbojj@gmail.com>
Co-committed-by: Jack Jackson <scubbojj@gmail.com>
2025-03-03 23:00:04 +00:00

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JavaScript

module.exports = function (xs, fn) {
var res = [];
for (var i = 0; i < xs.length; i++) {
var x = fn(xs[i], i);
if (isArray(x)) res.push.apply(res, x);
else res.push(x);
}
return res;
};
var isArray = Array.isArray || function (xs) {
return Object.prototype.toString.call(xs) === '[object Array]';
};