#typescript#blockchain#dapps#debugging#ethereum#javascript#smart_contracts#solidity#task_runner#tooling#typescript
Hardhat is a powerful Ethereum development tool that helps you write, test, and deploy smart contracts easily and efficiently. It includes a local Ethereum network for testing without real money, advanced debugging tools to find and fix errors quickly, and a flexible plugin system to add extra features. This makes your development faster, safer, and more convenient, especially if you want to build decentralized applications. You can install it with npm, follow simple setup steps, and access many guides and plugins to customize your workflow. Hardhat is widely used by professionals to streamline Ethereum programming and improve code quality.
https://github.com/NomicFoundation/hardhat
🚀 Вышел стабильный JavaScript движок от Google для Android
Новая стабильная библиотека Jetpack JavaScript Engine позволит разработчикам выполнять JS код в изолированной и ограниченной среде.
class MainActivity : ComponentActivity() {
// Теперь nullable, без lateinit
private var jsSandbox: JavaScriptSandbox? = null
private var jsIsolate: JavaScriptIsolate? = null
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
if (!JavaScriptSandbox.isSupported()) {
Log.e("JS", "JavaScriptSandbox не поддерживается")
return
}
lifecycleScope.launch {
// Создаём и сохраняем в nullable-поле
jsSandbox = JavaScriptSandbox
.createConnectedInstanceAsync(applicationContext)
.await()
jsIsolate = jsSandbox?.createIsolate()
// При выполнении гарантируем, что jsIsolate != null
val result: String = jsIsolate
?.evaluateJavaScriptAsync(JS_SCRIPT_SCRING)
?.await()
?: "Ошибка: isolate не инициализирован"
Log.d("JS", "Результат выполнения: $result")
}
}
override fun onDestroy() {
super.onDestroy()
// Закрываем только если не null
jsIsolate?.close()
jsSandbox?.close()
}
}
#jetpack#js