I’m using fullcalendar 1.6.3 along with Drupal 7 (thus the need, for now, to be back on 1.6.3). I have some code that I’d like to run every time the view of my calendar changes (via ajax requests) — forward or backward in time, or between month/week/day view. Based on some tests, I could do …
Tag: javascript
How to show div with date at the beginning of a conversation and every time the conversation is active again on another date
I am making a chat application with AngularJS and JavaScript and when you begin a conversation with someone I want to show a div (blue date in the picture) to show indicating at what date the conversation has begon. And when the conversation is over and started again on another date I want to show the date di…
Does ES6 introduce a well-defined order of enumeration for object properties?
Does ES6 introduce a well-defined order of enumeration for object properties? Answer Note: As of ES2020, even older operations like for-in and Object.keys are required to follow property order. That doesn’t change the fact that using property order for fundamental program logic probably isn’t a go…
How to collapse/expand accordion in a Q&A form after input selection
Not sure if that’s the correct vocabulary, but here’s what I’m trying accomplish. I’m working with a team on this big multi-page Q&A application, my task is make one particular page use the least amount of screen real estate as possible. I’m using an accordion, each one has a…
Passing environment-dependent variables in webpack
I’m trying to convert an angular app from gulp to webpack. in gulp I use gulp-preprocess to replace some variables in the html page (e.g. database name) depending on the NODE_ENV. What is the best way of achieving a similar result with webpack? Answer There are two basic ways to achieve this. DefinePlug…
Merge duplicate objects in array of objects
I have below array of objects, I want to merge the duplicate objects based on attribute ‘label’ so that Final output will look like below, Can someone help me identify the approach? Answer I would probably loop through with filter, keeping track of a map of objects I’d seen before, along the…
How do I promisify native XHR?
Want to improve this post? Provide detailed answers to this question, including citations and an explanation of why your answer is correct. Answers without enough detail may be edited or deleted. I want to use (native) promises in my frontend app to perform XHR request but without all the tomfoolery of a mass…
Simple easing function in javascript
I’m having trouble figuring out this simple math problem. I have spent over two hours reading through various related answers on SO and Google, but it seems my high school math knowledge is gone. On the page I have an element, that, once it passes a threshold, gets scaled down, the closer it gets to the…
Why does insertBefore delete the reference node here?
Edit: Found the problem somewhere else, sorry, false alarm! I can’t seem to figure out why insertBefore() is deleting the reference object in this javascript function: The console shows a node being present before insertBefore is executed, but it is somehow deleted and replaced by the new node afterward…
Iterative solution for flattening n-th nested arrays in Javascript
Can anyone show me an iterative solution for the following problem? I solved it recursively but struggled with an iterative solution. (Facebook Technical Interview Question) Solution must work with n-th nested array elements (i.e. it must still work if someone modifies the array values/placement in the exampl…