detect and throw on cyclic references

mathiasbynens / jsesc

Given some data, jsesc returns the shortest possible stringified & ASCII-safe representation of that data.

https://mths.be/jsesc

MIT License

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detect and throw on cyclic references #55

Open skeggse opened 4 years ago

skeggse commented 4 years ago

For example:

const cyclic = {};
cyclic.cyclic = cyclic;

// RangeError: Maximum call stack size exceeded
jsesc(cyclic);

I think this is typically done by tracking an array of seen values and pushing/popping when entering/exiting a recursive jsesc call. I might be able to implement if acceptable.