Skip to main content
Search type Search syntax
Tags [tag]
Exact "words here"
Author user:1234
user:me (yours)
Score score:3 (3+)
score:0 (none)
Answers answers:3 (3+)
answers:0 (none)
isaccepted:yes
hasaccepted:no
inquestion:1234
Views views:250
Code code:"if (foo != bar)"
Sections title:apples
body:"apples oranges"
URL url:"*.example.com"
Saves in:saves
Status closed:yes
duplicate:no
migrated:no
wiki:no
Types is:question
is:answer
Exclude -[tag]
-apples
For more details on advanced search visit our help page
Results tagged with
Search options not deleted user 83193

Javascript API and library for Ethereum To develop applications on Ethereum, you can use the web3 object provided by the web3.js library. Under the hood it communicates to a local node through RPC calls. web3.js works with any Ethereum node, which exposes an RPC layer. https://github.com/ethereum/wiki/wiki/JavaScript-API

1 vote
1 answer
367 views

Only the owner of the contract can update the smart contract - Solidity

I am developing a smart contract that holds user information. The problem is that when I try to update the user information from the address that did not deployed the contract, the request is successf …
Usama's user avatar
  • 65
0 votes
Accepted

Only the owner of the contract can update the smart contract - Solidity

Answer To The Question I have figured out a way to deal with this. The problem was the data was being saved correctly but when fetching the records solidity was assigning msg.sender to the creator of …
Usama's user avatar
  • 65
1 vote
2 answers
542 views

Make msg.sender to remain constant in solidity nested contracts

I have three different contracts. One is a simple contract (ContractA), second is my token contract and the third one is ERC20 Token contract which is inherited in my token contract. So when I make a …
Usama's user avatar
  • 65
2 votes
0 answers
359 views

Metamask Error Cannot set properties of undefined (setting 'loadingDefaults')

For the past few days I am below error from metamask. It occurs sometimes and sometimes the transaction is successful. It occurs when I try to transfer tokens from one account to another. The approve …
Usama's user avatar
  • 65
0 votes
1 answer
39 views

How to make secure transactions in contracts - Solidity

If I have a contract deployed to an exchange. From there I (hacker) can download the abi for that contract. So, now I have the abi and let's say I have the address of the owner (victim) as well. So, n …
Usama's user avatar
  • 65
2 votes
1 answer
657 views

Metamask does not open on opera using web3modal

I am using web3modal to connect with different wallets. On Mozilla I am able to connect with metamask but when I open my website on Opera GX browser (version: LVL4 (core: 89.0.4447.64)) it says that e …
Usama's user avatar
  • 65