```
console.log("Hello world! - typescript.jsrun.net")
let aArr = [[1,100]];
let vArr = [[1,100],[2,100]];
let newArr = []
let leng = Math.max(vArr.length, aArr.length);
const defaultKey:number = 0;
const defaultIdx:number = 0;
for(let i = 0;i < leng;i++)
{
let a = aArr[i];
let b = vArr[i];
if(!a && b){
newArr.push(b);
continue;
}
let newLeng = Math.max(a.length, b.length);
let id = a[j];
let idx = b[j];
}
```
