RangeError: Maximum call stack size exceeded
Problem
I am just calling `ìo.sockets.emit('hey', data);``and it will crash with``RangeError: Maximum call stack size exceeded``. I use it in other places in my app and it works fine. I am not repeating this (checked with console). The logs say the error is in``socket.io/node_modules/has-binary-data/index.js:46``. I dont know where the problem is. I tried logging `io.sockets` right before using it and it outputs this: [code block] My code is: [code block] JAVASCRIPT if (game.scoreTeamTwo > game.scoreTeamOne && game.scoreTeamTwo > game.scoreTeamThree && game.scoreTeamTwo > game.scoreTeamFour) { game.winner = 2; io.sockets.emit('CTFEnd', game); } //It´s just looking if team 1 won the game and when it does is emits [code block]` and all the other game data [code block]
Error Output
Error: Maximum call stack size exceeded``. I use it in other places in my app and it works fine. I am not repeating this (checked with console). The logs say the error is in``socket.io/node_modules/has-binar
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1 Fix
Fix Maximum Call Stack Size Exceeded in Socket.io Emit
The 'Maximum call stack size exceeded' error typically occurs due to excessive recursion or circular references in the data being emitted. In this case, the 'game' object may contain circular references or large nested structures that cause the serialization process to exceed the stack size when emitted via Socket.io.
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- 1
Inspect the Game Object Structure
Log the structure of the 'game' object before emitting it to identify any circular references or large nested objects that could cause issues.
javascriptconsole.log(JSON.stringify(game, null, 2)); - 2
Simplify the Game Object
If the 'game' object contains circular references or large data structures, create a simplified version of the object that only includes the necessary properties to emit.
javascriptconst simplifiedGame = { winner: game.winner, scoreTeamOne: game.scoreTeamOne, scoreTeamTwo: game.scoreTeamTwo }; - 3
Emit Simplified Game Object
Use the simplified game object for emitting the event to avoid the call stack size issue.
javascriptio.sockets.emit('CTFEnd', simplifiedGame); - 4
Test the Fix
Run the application and trigger the event to ensure that the 'Maximum call stack size exceeded' error no longer occurs.
Validation
Confirm that the application runs without crashing when the 'CTFEnd' event is emitted. Check the console for any errors and verify that the emitted data is correctly received on the client side.
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Environment
Submitted by
Alex Chen
2450 rep