1

Getting this Big Number error when trying to update my token price.Seems like a Javascript issue with the number size being passed.Anyone know a fix for this?

//Javascript
priceChange:function(){
App.contracts.DappTokenSale.deployed().then(function(instance) {
  let newPrice = document.getElementById('updatePrice');
  newPrice = web3.toWei(newPrice, 'ether');
  instance.setTokenPrice(newPrice);
})

}

 // Solidity 
function setTokenPrice(uint256 _newPrice) public{
  tokenPrice = _newPrice;
}
0

This is actually just a plain old Javascript problem.

This line:

let newPrice = document.getElementById('updatePrice'); is referring to the updatePrice DOM element, not the contents of that element.

But this function:

web3.toWei, takes a number as its first argument. You're passing a DOM element.

You need to change the former so that newPrice is a number and not an element. If you're unsure how to do this, you're best off asking in regular old Stack Overflow.

  • Ah I feel stupid, sorry I was overlooking the problem and thought it was something else. Just forgot to add .value to the end. Thanks for that. – James F Apr 30 at 6:37

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