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18 changes: 18 additions & 0 deletions src/programmers/javascript/lv1/lv1_같은숫자는싫어.js
Original file line number Diff line number Diff line change
@@ -0,0 +1,18 @@
// function solution(arr) {
// let answer = [];

// for (const item of arr) {
// if (answer[answer.length - 1] !== item) {
// answer.push(item);
// }
// }

// return answer;
// }

function solution(arr) {
return arr.filter((v, i) => v !== arr[i + 1]);
}

console.log(solution([1, 1, 3, 3, 0, 1, 1])); // [1,3,0,1]
console.log(solution([4, 4, 4, 3, 3])); // [4,3]