How to pass from argument to constructor function in solidity that can be received as msg.sender . This is my constructor code

constructor(uint256 _initialSupply)public{
   totalSupply = _initialSupply;
   balanceOf[msg.sender] = _initialSupply;

My client side code

initContract: function() {
$.getJSON('ErcToken.json', function(json, textStatus) {
  App.contracts.ErcToken = TruffleContract(json);
  return App.rendor();


rendor: function(){

        if(err === null){
          App.account = account;

        return instance.balanceOf(App.account);

    return App.bindEvents();

Here i'm always receiving balance as 0


The constructor is only executed when the contract is deployed, afterwards it cannot be executed again.

If you want to arbitrarily assign tokens to any user you can add a mint function like this

function mint(uint amount) {
    totalSupply += amount;
    balanceOf[msg.sender] += amount;
    emit Transfer(address(0x0), msg.sender, amount);
  • thank you , can you help me to identify this? while transferring token from one to another metamask stuck at unknown network id . i'm using local network with ganache Aug 5 '18 at 6:52

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