Get all the numbers sum that passed on the "runningSum" function

runningSum1dArray.js

function runningSum(nums: number[]): number[] {
	let sum = [nums[0]];
	for(let i=1; i<nums.length; i++) {
		sum[i] = sum[i-1] + nums[i];
	}
	
	return sum;
}

runningSum([1,2,3,4,5,6,7,8,9,10) // return [1, 3, 6, 10, 15, 21, 28, 36, 45, 55];