npm install solcjs-core-fix!Travis
!npm downloads

``sh`
npm install solcjs-core
`js`
const solcjsCore = require('solcjs-core');
* getVersion
`js`
let version = await solcjsCore.getVersion();
`js`
let version = await solcjsCore.getVersion('v0.5.1-stable-2018.12.03');
* solc
`js
let compiler = await solcjsCore.solc();
const sourceCode =
pragma solidity >0.4.99 <0.6.0;
library OldLibrary {
function someFunction(uint8 a) public returns(bool);
}
contract NewContract {
function f(uint8 a) public returns (bool) {
return OldLibrary.someFunction(a);
}
};``
let output = await compiler(sourceCode);