I’m making a Chrome extension that inserts 2 different React extensions on to the page. I’d like to keep each of them in sync by sending the 2nd one an event with appropriate data when something else is selected in the first one. Is there a best practice when it comes to sending events to other co…
Tag: javascript
DOM element to corresponding vue.js component
How can I find the vue.js component corresponding to a DOM element? If I have Is there a vue method equivalent to the jQuery Answer The proper way to do with would be to use the v-el directive to give it a reference. Then you can do this.$$[reference]. Update for vue 2 In Vue 2 refs are used for both
iOS WKWebView not showing javascript alert() dialog
I am having some trouble getting a WKWebView in iOS 8 to display an alert dialog that is called from Javascript. After creating a standard WKWebView and loading an HTML file, I have a button on the page that creates a simple alert with some text. This works in UIWebView and in Google Chrome/Safari, but does n…
How to reset the bootstrap modal when it gets closed and open it fresh again?
I have a list box in the bootstrap modal and a button. When the button is clicked a new button gets rendered inside a div in the modal. When I close the modal and reopen it, the last operation performed on the modal like the button rendered earlier is still present in the modal. How do reset the modal so
Create multilingual website with JavaScript and Node.js
I’m creating a web-application and I want to make it possible for the user to choose between 2 or 3 languages. What is the best way of doing this, using HTML, JavaScript and Node.js? Is there a difference in performance when using a client-side or server side solution for this? (Having mobile users in m…
Why does Bootstrap Collapse keep removing the “collapse” class after expanding?
I am using jQuery Collapse on an element that’s inserted via Ajax. When I apply the line below, it removes the collapse class. I need the class to remain so I can call collapse(‘hide’) when the Ajax content needs to be closed. Here’s what I have in my .php file: Here’s what it en…
A Vector Class in Javascript
I’m trying to implement a vector object instantiated like below… …and when I do a math operation I need something like this… …but my code below returns me just an array Please help me out here. Thank you! Answer You need to wrap up your resulting array in a new Vector object: I s…
onYouTubeIframeAPIReady function is not calling
I want to call onYouTubeIframeAPIReady function but this is not firing. I am getting only frameID in console but other functions are not getting called. Answer Your onYouTubeIframeAPIReady() function must be defined globaly. Simply replace the line with It is also important to load the youtube iframe api libr…
In this code, copied from ch 15 of eloquent javascript, what does the keyup event listener do?
In the following code, copied from ch 15 of Eloquent Javascript, how does pressed[codes[event.keyCode]] end up as a boolean value? I just can’t figure out why you need the ‘keyup’ event listener. The idea is to make sure that ‘keydown’ gets registered only once when it is being h…
indexOf() when array-elements are objects (javascript)
For instance, a variable named arrayElements of type array contains: [{id:1, value:5},{id:2, value:6},{id:3, value:7},{id:4, value:8}]. How do I get the position of the array element with id === 3(3rd element) in the arrayElements variable besides using loop? thanks. Answer You have to loop at one point. But …