In angular 6, let we have three component x,y,z . I am in now at x component. But when I go to component y and return back to x, there is still the previous x component in the DOM. But I want to delete the previous instance of x.That means I want only one intstance of a component at a
Tag: javascript
Odd over-scroll behavior
So we have this website, and when you scroll all the way down to the bottom it keeps scrolling. I’ve tried lots of ways to fix this and haven’t come across a valid solution. It seems to be adding margin outside of the main <html> tag. Any help would be greatly appreciated Only custom JS adde…
how to access “this” in props validator
I’m working on a project using nuxt.js, I’m injecting a function in the context of the application as recommended in the official documentation https://nuxtjs.org/guide/plugins/#inject-in-root-amp-context but when I try to call the function inside a props validation I get an error /plugins/check-p…
drag and drop in vue js without component
I want to use html 5 drag and drop in vue js . I see the w3schools tutorial about drag and drop . It works in a simple html file but doesn’t work in my vue project My tutorials code and link is : w3schools – drag : https://www.w3schools.com/jsref/event_ondrag.asp and my error says : Uncaught Refer…
remove strikethrough behavior in chart.js bar chart
i am trying to change the look of the legends by removing the strikethrough effect , wihtout using legendCallback function in chart.js. The reason why i do not want to use the legendCallback function because i have my own custmizations in chart.options.legend.onClick. hence if i use legendCallback i won’…
How to get value of bootstrap switch
I’m using bootstrap switch & i want to get checkbox value on click on switch. I’ve tried this but i din’t get the value. Could you check my code bellow & let me know where i did wrong Answer Tamara, Bootstrap Switch has an onSwitchChange property that will be able to give you the sta…
How to display different output based on a text box input using Javascript?
I am creating a grading system with a perfect score of 100. The total is automatically calculated depending the score provided and it is read only. Now, I want to show another text box a short remarks based on the total without the submit button. For example, if the grade is 90 and below, the remarks should a…
JavaScript: How to draw multiple rectangles with Canvas using fillRect?
I am attempting to create a simple game where I have two rectangles, a human-controlled player and a “collider” that has to be avoided. I am trying to draw the two rectangles using fillRect(), however only one shows up. For example, putting the “lime” colored rectangle first would resu…
throttle executes the function at most one time per wait period right?
I want to throttle my function every 100 milliseconds. In the following code, I expect only 1 and 3 to be printed. But 2 is also printed in the actual result. I have to change the throttle wait time to 500 in order to filter out the 2. Maybe my understanding of throttle is wrong. Shouldn’t throttle exec…
How to drop index from mongodb schema using mongoose?
I’m trying to remove an index from my mongoDB collection in node.js application using mongoose. I tried using model.collection.dropIndex(“username”) but it gives me an error UnhandledPromiseRejectionWarning: MongoError: index not found with name [username]. Here is my Schema When I perform t…