After installing V8 standalone and running javascript code using the command ./d8 source.js, I encountered an issue with setTimeout resulting in a
ReferenceError: setTimeout is not definedsetTimeout is not a standard feature of ECMA-262, as it is implemented by web browsers. Nonetheless, by installing Node.js (which includes V8 engine and additional features), you can access a command line implementation of setTimeout.
Interestingly, V8 now has its own version of the setTimeout function, implemented approximately 7.5 years after its initial introduction. This function, available in the shell it provides, only requires one parameter (the function to call) and schedules it to be executed once the current task is finished. It behaves similarly to passing 0 as the second parameter in the traditional form of setTimeout found in browsers and Node.js.
For instance, if we have a file named example.js containing:
console.log("a");
setTimeout(() => {
console.log("c");
}, 5000);
console.log("b");
When running the following command:
bandc.(This demonstration uses the
v8command from jsvu, which offers a way to execute code directly within V8. The former commandd8may no longer be in use...)
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