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Replace First solution in Uncategorized category for Replace First by Elena_Korljukova
import assert from "assert";
var replaceFirst = values => values.length > 1 ? values.slice(1).concat(values[0]) : values
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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June 8, 2020