linting fix

libs/remix-core-plugin/src/lib/compiler-artefacts.ts

@@ -77,9 +77,9 @@ export class CompilerArtefacts extends Plugin {
     const contractsData = Object.values(contractsDataByFilename)
     if (contractsData && contractsData.length) {
       const index = contractsData.findIndex((contractsObj) => Object.keys(contractsObj).includes(contractName))
-      if (index != -1) return contractsData[index][contractName]
+      if (index !== -1) return contractsData[index][contractName]
       else throw new Error(`Could not find artifacts for ${contractName}. Make sure it is compiled.`)
-    } else throw new Error(`No contract compiled`)
+    } else throw new Error('No contract compiled')
   }
 
   getCompilerAbstract (file) {