JavaScript错误处理和堆栈追踪浅析

current stack trace into myObj

// This time we will hide all the frames after `b` and `b` itself

Error.captureStackTrace(myObj, b);

}

function c() {

d();

}

function b() {

c();

}

function a() {

b();

}

// First we will call these functions

a();

// Now let's see what is the stack trace stored into myObj.stack

console.log(myObj.stack);

// This will print the following stack to the console:

// at a (repl:2:1) <-- As you can see here we only get frames before `b` was called

// at repl:1:1 <-- Node internals below this line

// at realRunInThisContextScript (vm.js:22:35)

// at sigintHandlersWrap (vm.js:98:12)

// at ContextifyScript.Script.runInThisContext (vm.js:24:12)

// at REPLServer.defaultEval (repl.js:313:29)

// at bound (domain.js:280:14)

// at REPLServer.runBound [as eval] (domain.js:293:12)

// at REPLServer.onLine (repl.js:513:10)

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