This error occurs in JavaScript when an object contains a circular reference and is passed to JSON.stringify(). This method cannot handle circular structures, where an object refers back to itself directly or indirectly.
How to fix this issue:
1.Manual Circular Reference Handling: One solution is to modify the object before calling JSON.stringify(). You can manually detect and exclude circular references. Here's a simple function to handle it:
function stringify(obj) {
let cache = [];
let str = JSON.stringify(obj, function(key, value) {
if (typeof value === "object" && value !== null) {
if (cache.indexOf(value) !== -1) {
return; // Circular reference found, discard key
}
cache.push(value); // Store value in our collection
}
return value;
});
cache = null; // Reset the cache
return str;
}
2.Using Libraries: Libraries like JSONC can convert circular structures to JSON.