For example, I want to disable the new heap snapshots so I type something like this:
node --new_snapshot=false
But I get an error: Error: illegal value for flag --new_snapshot=false of type bool
What am I missing about the syntax?
The core powering Node. js is this V8 engine. The diagram shows a comparison with the Java Virtual Machine (JVM), which power the Java Runtime environment.
V8 is known to be a JavaScript engine because it takes JavaScript code and executes it while browsing in Chrome. It provides a runtime environment for the execution of JavaScript code. The best part is that the JavaScript engine is completely independent of the browser in which it runs.
There is a wide variety of command line options in Node.js. These options provide multiple ways to execute scripts and other helpful run-time options. Let's see the list of Node.js command line options: Index. Option. Description. 1. v, --version. It is used to print node's version.
Node.js can be invoked with an incredibly various set of options. Most of those options are used to configure the v8 engine behavior. Some of the options here are disabled by default, as you cna see in the Default column. You can enable them by running node and passing the flag, for example node --experimental-extras.
nvm is a popular way to run Node.js. It allows you to easily switch the Node.js version, and install new versions to try and easily rollback if something breaks. It is also very useful to test your code with old Node.js versions.
Node has a number of runtime configuration options, and they have 3 ways of being specified: 1 compiled-in configuration 2 environment variables 3 command line options
I had to dig into v8 source code to get this. For some reason I couldn't find it documented. However, a boolean option is enabled by setting --option
and disabled by using --nooption
(note the no
prefix).
So in your case use
node --nonew_snapshot
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