[JavaScript知识库]angular，Last few GCs JavaScript heap out of memory

angular再运行项目时，出现如下问题：

<--- Last few GCs --->

[4952:000001FA2DC69760] ? 144757 ms: Mark-sweep 2020.4 (2052.9) -> 2018.8 (2052.9) MB, 1340.9 / 0.1 ms ?(average mu = 0.113, current mu = 0.035) allocation failure scavenge might not succeed
[4952:000001FA2DC69760] ? 146392 ms: Mark-sweep 2020.3 (2052.9) -> 2018.8 (2052.9) MB, 1560.6 / 0.1 ms ?(average mu = 0.079, current mu = 0.045) allocation failure scavenge might not succeed

<--- JS stacktrace --->

==== JS stack trace =========================================

? ? 0: ExitFrame [pc: 00007FF695C8CC5D]
? ? 1: StubFrame [pc: 00007FF695C8DD53]
Security context: 0x02d1675808d1 <JSObject>
? ? 2: process(aka process) [000001AAF3DE0D41] [D:\temp\ng13\scrsFrontEnd\node_modules\webpack\lib\serialization\ObjectMiddleware.js:~424] [pc=0000027873688EB4](this=0x01fa2f4c04b1 <undefined>,0x00d6ddcd61b1 <JSArray[2]>)
? ? 3: write(aka write) [0000001513662961] [D:\temp\ng13\scrsFrontEnd\node_modules\webpack\lib\s...

FATAL ERROR: Ineffective mark-compacts near heap limit Allocation failed - JavaScript heap out of memory
?1: 00007FF69505285F napi_wrap+119263
?2: 00007FF694FF9526 v8::internal::OrderedHashTable<v8::internal::OrderedHashSet,1>::NextTableOffset+38102
?3: 00007FF694FFA326 node::OnFatalError+438
?4: 00007FF695837AAE v8::Isolate::ReportExternalAllocationLimitReached+94
?5: 00007FF69581FC61 v8::SharedArrayBuffer::Externalize+833
?6: 00007FF6956D143C v8::internal::Heap::EphemeronKeyWriteBarrierFromCode+1436
?7: 00007FF6956DC680 v8::internal::Heap::ProtectUnprotectedMemoryChunks+1312
?8: 00007FF6956D9194 v8::internal::Heap::PageFlagsAreConsistent+3204
?9: 00007FF6956CE993 v8::internal::Heap::CollectGarbage+1283
10: 00007FF6956CD004 v8::internal::Heap::AddRetainedMap+2500
11: 00007FF6956EE34D v8::internal::Factory::NewFillerObject+61
12: 00007FF6954518F1 v8::internal::interpreter::JumpTableTargetOffsets::iterator::operator=+1665
13: 00007FF695C8CC5D v8::internal::SetupIsolateDelegate::SetupHeap+546925
14: 00007FF695C8DD53 v8::internal::SetupIsolateDelegate::SetupHeap+551267
15: 0000027873688EB4。

解决方案：

1.打开你的终端（vsCode）或者 Terminal（WebStorm）

2.执行以下命令设置--max_old_space_size值，单位M（8192=8G)

Windows 当前应用程序有效（在vscode或cmd设置，哪里设置的哪里有效，关闭后设置取消，下次需重新在应用程序中设置）：

set NODE_OPTIONS=--max_old_space_size=8192

Windows 永久有效(仅用户级别，cmd中运行)：

setx NODE_OPTIONS --max-old-space-size=8192

Windows 永久有效(系统级别)

在环境变量窗口中编辑系统级别的环境变量。新增配置：
name:?NODE_OPTIONS
value:?--max-old-space-size=8192?

我的貌似每次都要在vscode的cmd下运行一下，否则还是会报错：

?

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