手写lodash库里面的initial函数

手写loadsh函数的第三天

<script>
      const array = [1, 2, 3];
      function initial(arr) {
        let newArr = [];
        for (let i = 0; i < array.length - 1; i++) {
          newArr.push(arr[i]);
        }
        return newArr;
      }
      console.log(initial(array));
    </script>