I am working with Javascript(ES6) /FaceBook react and trying to get the first 3 elements of an array that varies in size. I would like do the equivalent of Linq take(n). In my Jsx file I have the following: Then to get the first 3 items I tried This didn’t work as map doesn’t have a set function. …
Author: admin@master
How to use promptbox to change background color?
I found another post but it wasn’t using a promptbox. I just need the exact same functionality as this but using a promptbox: Answer Use this to get the value of a prompt var color = prompt(“What color”); and this to set the background: document.bgColor = color; Now color will be whatever th…
Smooth Scrolling jumps weirdly
I’m working with a nav bar that becomes fixed with a screen max-width < 1000px. The height of the navigation bar is 60px. So it goes backwards with animation 60px if max-with < 1000px. All this works fine, but my problem is that the page jumps weirdly only when the viewport is bigger than 1000px. Answer…
Angular making pseudo-synchronous HTTP requests
I want to construct a mechanism that would access a database via POST requests. So far, I do received the desired data, but am have issues with the timing. Here are three pieces of code that I’m using (simplified to keep the focus of the question). First, a factory handling the HTTP request vis-à-vis a …
Javascript function called only once despite multiple event listeners
I am rebuilding one of my own websites specifically to avoid using jQuery since I used so little of it that the memory overhead just isn’t necessary, and I’m not concerned about supporting older browsers (the version of Firefox I’m using is likely to be the oldest browser to ever look at my …
Bootstrap 4 – Avoid modal closing for on-screen click
In rails 4, I am using bootstrap plugin. When I am using modal feature there is close event issue which I need to solve. When modal opens, it should get close when I click on ‘x’ icon or ‘Esc’ button otherwise it should be open always. Right now when I click on the screen which exclude…
Giving a value to a href in a anchor tag with Vue
Sounds dumb but I can’t find a way to pass a variable data defined in the href: ComponentFile.vue I tried all of those: What is the correct way? Thanks! Answer You’ve defined data() as a function, but it isn’t returning anything. It should return an object with the data like so: Then either …
What is difference between creating object using Object.create() and Object.assign()?
Considering following code: Is there any difference between obj1 and obj2 since each object has been created in a different way? Answer Let’s compare obj1 and obj2 in this code: Prototypical chain Object.create creates a new object with the specified [[Prototype]], and Object.assign assigns the properti…
How is version number comparison working correctly in JavaScript?
I am able to compare version numbers correctly in JavaScript without having to split and check each decimal numbers. How is it working? Thanks. Answer No, you’re not ” able to compare version numbers correctly in JavaScript without having to split” Those strings are compared character after …
Unknown white space appear on the right side of web page
Here’s the look: [] I did the page in ReactJS, but I’ve made a copy of the page here. To better show the white space, here’s the screenshot: several interesting observations: when the page is first loaded, there’s no such issue. the issue only appear, when the second image box (the one…