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Results tagged with solidity
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user 24976
Solidity is a contract-oriented, high-level language whose syntax is similar to that of JavaScript and it is designed for writing smart contracts in Ethereum to run on the EVM. Solidity is statically typed, supports inheritance, libraries and complex user-defined types among other features.
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How can I implement rational operations in Solidity? [duplicate]
First, I know that fixed point integers are coming...but I really need to know how to accomplish a simple operation who return a rational number.
For example, get 2% of 350 is easy implementing: 350 …
- 309
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vote
2
answers
4k
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smart contract token & 18 decimals
When I'm working with 18 decimals. I have to convert the token inside of a function, for instance, one user want to transfer 20 token... I must operate that amount inside transfer function: amount*10^ …
- 309
0
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1
answer
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How put address (from ganache-cli client) as a parameters in constructor
Always, when I try to send parameters for the constructor function I use a migration file and where I´m trying to deploy the contract, add the parameters...Something like that:
var OVXET = artifacts. …
- 309
3
votes
2
answers
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instance.balanceOf(...).call is not a function
I have ERC20 standard token functions in my code...I´m trying to test the function balanceOf(address _owner) with a javascript test on truffle but I have the following problem:
TypeError: ovxet.bal …
- 309
5
votes
3
answers
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TypeError: Expression has to be an lvalue. But before the code was working perfectly!
I have changed a few things inside the function but the logic is the same still. Now, give an error in the compiler. I am USING TRUFFLE with VSC.
Former function:
function remove(uint ind) internal …
- 309
1
vote
2
answers
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How to represent the complete big number (all e)
When I convert a variable using the functions toNumber() or toString() I obtain this result: x.toNumber()
1e+27
But I want to see the entire number with all the figures. Because If I don´t convert …
- 309
3
votes
4
answers
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Return a struct from a mapping in test truffle
I want the information stored in each struct inside the mapping.
This is my struct:
struct BurnApply {
address applicant;
uint amount;
string btcAddress;
uint8 flag;
uint passw …
- 309