将区块链块存储在阵列中不是效率低下吗？ （Node.js）

Question

I've read some articles on creating blockchain using Node.js and one common thing I found that they are using arrays to store blocks.

I don't think it is efficient to use an array here because the size of the chain may increase to hundreds of MB.

So my questions are what is the best way to store blocks? Array? Redis? Something else?

Edit:

One of the articles I have read: https://codingislove.com/simple-blockchain-javascript/

See the array "chain" in the Blockchain class.

Answer 1

The higher length of your block chain, the better that your block chain will get, As of my knowledge to verify a single block, the bit coin block chain (the implementation) does not goes till the root block, bitcoin block chain uses an algorithm depend on the amount of the transaction, how many blocks they need to travel to (higher the amount, higher the reverse traversing).

So my suggestion is to keep a constant amount of blocks on the memory to verify, And persist other blocks to a database or key value storage(like redis) and load them when required.