JavaScript short and sweet
js\nconst findTheArrayConcVal = nums => {\n  let output = 0;\n  let i = 0;\n  let j = nums.length - 1;\n\n  while (i <= j) {\n    output += Number(i === j ? num
```js\nconst findTheArrayConcVal = nums => {\n  let output = 0;\n  let i = 0;\n  let j = nums.length - 1;\n\n  while (i <= j) {\n    output += Number(i === j ? nums[i] : `${nums[i]}` + `${nums[j]}`);\n    i++;\n    j--;\n  }\n  return output;\n};\n```
['JavaScript']