These are the reasons I would choose one over the other: For-loop Syntax: for( int i = 0; i < 10; i++) { //Some code here } I would use a for loop for the reason that I may KNOW the NUMBER OF ITERATIONS I need to do and I have an INCREMENTING variable which … Read more
The video volume is a percentage between 0 and 1, it can’t got higher than 100%. The only way you could potentially make this happen is be routing the audio from the video player into the Web Audio API and amplifying it there. https://developer.mozilla.org/en-US/docs/Web/API/AudioContext/createMediaElementSource // create an audio context and hook up the video element … Read more
My solution was very simple (see v-model=”tags[index]”): Instead of doing this: <template v-for=”tag in tags”> <TagView :key=”tag.key” v-model=”tag” /> </template> You should do this: <template v-for=”(tag, index) in tags”> <TagView :key=”tag.key” v-model=”tags[index]” /> </template> The reason is you cannot pass iterated object tag into v-model for modifications. Please find more info about this: Iterating a … Read more
This will “work”. (but I don’t recommend it) var a = {}; var b = [1,2,3]; a[b] = ‘hello’; // a[b] evaluates to ‘hello’ // a[[1,2,3]] evaluates to ‘hello’ // a[‘1,2,3’] evaluates to ‘hello’ It works because when you pass the array [1,2,3] as the hash (map/associative-array) key, is being converted to the string ‘1,2,3’ … Read more
You need to clear your interval, useEffect(() => { const intervalId = setInterval(() => { //assign interval to a variable to clear it. setState(state => ({ data: state.data, error: false, loading: true })) fetch(url) .then(data => data.json()) .then(obj => Object.keys(obj).map(key => { let newData = obj[key] newData.key = key return newData }) ) .then(newData => … Read more
First, create staticfiles folder. Inside that folder create css, js, and img folder. settings.py import os PROJECT_DIR = os.path.dirname(__file__) DATABASES = { ‘default’: { ‘ENGINE’: ‘django.db.backends.sqlite3’, ‘NAME’: os.path.join(PROJECT_DIR, ‘myweblabdev.sqlite’), ‘USER’: ”, ‘PASSWORD’: ”, ‘HOST’: ”, ‘PORT’: ”, } } MEDIA_ROOT = os.path.join(PROJECT_DIR, ‘media’) MEDIA_URL = ‘/media/’ STATIC_ROOT = os.path.join(PROJECT_DIR, ‘static’) STATIC_URL = ‘/static/’ STATICFILES_DIRS = … Read more
addStyleTag: You can use page.addStyleTag to add some style which will either add a link or style tag based on your options which can be a url, path or some css content. // url await page.addStyleTag({url: ‘http://example.com/style.css’}) // path, can be relative or absolute path await page.addStyleTag({path: ‘style.css’}) // content await page.addStyleTag({content: ‘.body{background: red}’}) evaluateOnNewDocument: … Read more
The whole point of an anchor link is to scroll a page to a particular point. So if you don’t want that to happen, you need to attach an onclick handler and return false. Even just adding it as an attribute should work: <a href=”#button1″ id=”button1″ onclick=”return false”>button 1</a> A side of effect of the … Read more
You have to understand the mechanics behind Typescript and the spying. First on Typescript … I’m ignoring the extra parens in class Parent(). Typescript uses prototypal inheritance behind the curtain. Thus a prototype will copy the referenced properties from the “base class” to the new class. This is what the for loop does in the … Read more