fix(js): in new map(key, value), key cannot be an array as it is retu…

…rning undefined. issue#14017

There was a breaking change done on @nrwl/js package through #13813
PR, this has caused an issue#14017 on the frameworks like express, nest.js and wherever
@nrwl/js:node is used as executor.
Once the fresh installation of express or nest.js is done
through nx, after every file changes, it gives EADDRINUSE error.
The issue is caused by using
\"array\" as key in \"new Map(key, value)\" function. I corrected it by using JSON.stringify function.

BREAKING CHANGE:
NA

ISSUES CLOSED: #14017

packages/js/src/executors/node/node.impl.ts

@@ -15,7 +15,7 @@ import { InspectType, NodeExecutorOptions } from './schema';
 
 const hasher = new HashingImpl();
 const processMap = new Map<string, ChildProcess>();
-const hashedMap = new Map<string[], string>();
+const hashedMap = new Map<string, string>();
 
 export interface ExecutorEvent {
   outfile: string;
@@ -92,7 +92,7 @@ async function runProcess(
 
   const hashed = hasher.hashArray(execArgv.concat(options.args));
 
-  const hashedKey = [uniqueKey, ...options.args];
+  const hashedKey = JSON.stringify([uniqueKey, ...options.args]);
   hashedMap.set(hashedKey, hashed);
 
   const subProcess = fork(
@@ -166,7 +166,7 @@ async function killCurrentProcess(
   options: NodeExecutorOptions,
   signal: string = 'SIGTERM'
 ) {
-  const hashedKey = [uniqueKey, ...options.args];
+  const hashedKey = JSON.stringify([uniqueKey, ...options.args]);
   const currentProcessKey = hashedMap.get(hashedKey);
   if (!currentProcessKey) return;