hi i have a query and was unable to get exact answer. I have a below closure function function closure() {let innerVal; return function() {innerVal = innerVal+10}} let inst = closure(); inst(); console.log('end'); will innerVal be cleared during GC after…
Will this code cause a memory leak in Flutter? Classes A and B reference each other: The VM in Flutter has GC, which is different from other languages I've learned, such as OC or Swift. I observed through dev tools…
Let's assume I have the following code: (function () { const largeObject = provideSomeLargeObject(); const largeStaticListOfElements = document.querySelectorAll('span'); const someElementThatWillBeRemoved = document.getElementById('i-will-be-removed'); const elms = document.getElementsByClassName('click-me'); for (let i = 0; i < elms.length; ++i) { const anotherLargeObject = provideAnotherLargeObject();…
Consider a webpage that contains a button which triggers the opening of a modal: <dialog></dialog> <button>Open modal</button> const trigger = document.querySelector(`button`); const wrapper = document.querySelector(`dialog`); trigger.addEventListener(`click`, () => { wrapper.replaceChildren(new Modal()); wrapper.showModal(); }); The modal is a custom element: class…
I have this code created with help from ChatGPT: class Thing { #intervalId; #finalizationRegistry; constructor() { console.log('constructor()'); let count = 0; this.#intervalId = setInterval(() => { console.log(`Test ${count++}`); }, 1000); this.#finalizationRegistry = new FinalizationRegistry(() => { this.#destructor(); }); this.#finalizationRegistry.register(this); }…
Let's say there is a file in my app that consists of nothing but hundreds of exported functions, but only one rarely used part of my app uses them. A file like this: export function a() { .. } export…
If I initialize String array directly like this String[] Distro = Distros.split(","); then it'll create an object because variable Distro is holding the array. But If I do it this way then it'll also create an object? String Distros =…
The G1GC old generation committed heap goes up over time (about 5 to 6 days on production) but the old generation used heap does not. The Eden and survivor heap is forced to decrease to the minimum (5% of the…
Been having some problems with a web based .Net(C#) application. I'm using the LazyCache library to cache frequent JSON responses (some in & around 80+KB) for users belonging to the same company across user sessions. One of the things we…
I have a Java application providing online video play service. When peak traffic arrives (for example, users click the push window in mobile phone), the GC overhead is very heavy, I can see info about "promotion failed" and "concurrent mode…