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concat solution in Clear category for Replace First by dbirmajer
import assert from "assert";
function replaceFirst(values: number[]): number[] {
return values.length === 0 ? values : values.slice(1).concat([values[0]]);
}
console.log('Example:');
console.log(replaceFirst([1, 2, 3, 4]));
// These "asserts" are used for self-checking
assert.deepEqual(replaceFirst([1, 2, 3, 4]), [2, 3, 4, 1]);
assert.deepEqual(replaceFirst([1]), [1]);
assert.deepEqual(replaceFirst([]), []);
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Jan. 15, 2021
