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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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Can not call the solidity smart contract function from web3js
I am trying to call a method in solidity smart contract through angular app, but I am getting this error:
TypeError: this.contract.methods.hello is not a function
at CertificateContractService. … zone-evergreen.js:358)
at Zone.run (zone-evergreen.js:124)
at zone-evergreen.js:855
at ZoneDelegate.invokeTask (zone-evergreen.js:391)
at Object.onInvokeTask (core.js:39680)
Smart contract
pragma solidity …