@fromjs/backend/dist/jsonParseTiming.js

"use strict";
// Show slow JSON.parse calls in the trace
const nativeParse = JSON.parse;
JSON.parse = function (json) {
    const shouldTrace = typeof json === "string" && json.length > 10;
    let start = new Date();
    let ret = nativeParse.apply(this, arguments);
    if (shouldTrace) {
        const duration = new Date().valueOf() - start.valueOf();
        if (duration > 20) {
            console.log("JSON.parse took " + duration + "ms", (json || "").slice(0, 100).replace(/\n/g, " "));
        }
    }
    return ret;
};
const nativeStringify = JSON.stringify;
JSON.stringify = function () {
    let start = new Date();
    const ret = nativeStringify.apply(JSON, arguments);
    let duration = new Date().valueOf() - start.valueOf();
    if (duration > 20) {
        console.log("JSON.stringify took " + duration + "ms", (ret || "").slice(0, 100));
    }
    return ret;
};