setFlagsFromString
The v8.setFlagsFromString()
method can be used to programmatically set V8 command-line flags. This method should be used with care. Changing settings after the VM has started may result in unpredictable behavior, including crashes and data loss; or it may simply do nothing.
The V8 options available for a version of Node.js may be determined by running node --v8-options
.
Usage:
// Print GC events to stdout for one minute.
const v8 = require('node:v8');
v8.setFlagsFromString('--trace_gc');
setTimeout(() => { v8.setFlagsFromString('--notrace_gc'); }, 60e3);
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Since
v1.0.0