v8.setFlagsFromString(flags)

• flags <string>

v8.setFlagsFromString() 方法可用于以编程方式设置 V8 命令行标志。此方法需谨慎使用。在 VM 启动后更改设置可能会导致不可预测的行为，包括崩溃和数据丢失；或者它可能什么都不做。

¥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.

可以通过运行 node --v8-options 来确定 Node.js 版本可用的 V8 选项。

¥The V8 options available for a version of Node.js may be determined by running node --v8-options.

用法：

¥Usage:

// Print GC events to stdout for one minute.
const v8 = require('node:v8');
v8.setFlagsFromString('--trace_gc');
setTimeout(() => { v8.setFlagsFromString('--notrace_gc'); }, 60e3); 拷贝