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TypeScript- When should I use the Pick keyword?

What are the use cases and when should I use it? Thanks!

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Can a third party pay for gas?

Can anyone besides the person sending the transaction pay for gas?

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How to speed up DApp adoption

To speed up adoption, I would like to let people use my DApp without requiring them to buy ether in the first place. On the other side, offering et... more

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Recurring subscription based model based on ether

In the last couple of years, recurring subscription-based models enjoyed a considerable growth. Today, almost anything can be purchased using a rec... more

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Why don't miners estimate the cost of a transaction by simulating it?

So... Geth and other clients are able to estimate the cost of a transaction by simulating it. I'm wondering why don't miners estimate the costs of ... more

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WeakMap in JavaScript

I just started learning JavaScript. Can anyone explain what this actually means- "The WeakMap object is a collection of key/value pairs in which th... more

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How can I programmatically destroy tokens in a smart contract?

How can I programmatically destroy tokens in a smart contract?

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How accurate are the results of web3.eth.estimateGas

The documentation mentions that web3.eth.estimateGas executes "a message call or transaction, which is directly executed in the VM of the node, but... more

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How contract suicide actually work?

My understanding is that when a contract suicide is executed, its data is also removed. This means that the block needs to change. Also, all the su... more

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How can I verify if an account exists?

Let's say that an account was created but hasn't performed any transactions yet. Is there a method to verify if it exists? more

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