Encountering issues due to overriding JSON.stringify

Recently, I developed a customized function for JSON.stringify implementation as shown below:

JSON.stringify = function (item, replacer, space) {
     return JSON.stringify(item, replacer, space);
}

This modification led to multiple errors in AngularJS which can be viewed here.

The main reason behind this override was my intention to include a feature where certain fields in objects can be ignored by JSON. Here's how it works:

JSON.stringify = function (item, replacer, space) {
    if (angular.isObject(item)) {
        var newItem = angular.copy(item);
        var ignores = item.jsonIgnore || [];

        ignores.forEach(prop => {
            delete newItem[prop];
        });

        return JSON.stringify(newItem, replacer, space);
    }

    return JSON.stringify(item, replacer, space);
}

Answer №1

This function is recursive and does not have an end condition. One approach is to solve the problem by creating a local function:

let customFunction = function (item, modifier, layout) {
    ...
}

Another option is to override the original function while following the guidance provided in this article.

Answer №2

Appreciate all the help, I managed to solve it by creating a local variable containing the original function

var originalStringify = JSON.stringify;

and then invoking my custom function

return originalStringify(item, replacer, space);

Thus, my customized Json ignore override function now looks like this:

// JSON ignore
var original = JSON.stringify;

JSON.stringify = function (item, replacer, space) {
    if (angular.isObject(item)) {
        var newItem = angular.copy(item);
        var ignores = item.jsonIgnore || [];

        ignores.forEach(prop => {
            delete newItem[prop];
            delete newItem.jsonIgnore;
        });

        return original(newItem, replacer, space);
    }

    return original(item, replacer, space);
}

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