hardikmansaraa 6 months ago

ERC-20 Token transaction fail status

I am using web3 for ethereum blockchain. When i transfer token, "TxReceipt Status":Fail. My Code is: ``` var _contractInstance = new web3.eth.Cont... more

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robertoschler 6 months ago

Web3.js function(s) to help determine the block numbers inside a date range?

I'm working through Lesson 6, Chapter 9. In that lesson it talks about subscribing to events and also querying for events within a certain block r... more

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taijusanagi 6 months ago

Error: Couldn't decode address from ABI: 0x

Hi I'm getting error "Error: Couldn't decode address from ABI: 0x" in blow code. var testFunctionAddress = "0x8f0483125fcb9aaaefa9209d8e9d7b9c8b9f... more

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cryptogrow36 6 months ago

how to call transfer function of token contract using web3 & metamask

Hello all! im looking for help with a problem ive been trying to solve for over a week! I have successfully launched my token contract, IdeaCoin to... more

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mclovin 7 months ago

How to track contract events in frontend?

I am trying to call a contract’s function by its instance in web3.js^1.0.0 using asynchronous function but I am getting an “undefined” rather than ... more

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krlosmata 6 months ago

Besides Solidity, any good tutorial on Web3 and Javascript ?

I want to write a DApp but I have no clue on Javascript and Web3. What is your advice to learn those codes ? ( Supossing programming experience and... more

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zwoosks 6 months ago

Web GUI

There's a tutorial teaching how you can make a GUI with web3.js and post to your host?

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robertoschler 6 months ago

Cannot find “web-requestManager” exception when requiring Web3.js module from Javascript?

I have a *Node.js v8.11.1* app running on a *Ubuntu 14.04* LTS box that uses the Web3.js module. When I upgraded to the latest beta version, the v... more

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taijusanagi 6 months ago

CryptoZombies web3 version seems inconsist

Hi I'm thinking CryptoZombie tutorial lesson 6's web3 version is inconsist. Because For accessing contract following method only supported by 1... more

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chrouzz 6 months ago

How to learn to use web3.js

How to learn to use web3.js

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