Converting circular structure to JSON code example
Example 1: json stringify close circle
const getCircularReplacer = () => {
const seen = new WeakSet();
return (key, value) => {
if (typeof value === "object" && value !== null) {
if (seen.has(value)) {
return;
}
seen.add(value);
}
return value;
};
};
JSON.stringify(circularReference, getCircularReplacer());
Example 2: UnhandledPromiseRejectionWarning: TypeError: Converting circular structure to JSON
I also ran into this issue. It was because I forgot to await for a promise.
Example 3: Converting circular structure to JSON
//The error means that the object you pass in the request has a circular reference, something like:
var a = {};
a.b = a;
Example 4: javascript circular evaluation
Game.prototype.restart = function () {
this.clearLocalStorage();
this.timer = setTimeout(this.reset.bind(this), 0); // bind to 'this'
};
Game.prototype.reset = function(){
this.clearBoard(); // ahhh, back in the context of the right 'this'!
};