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Tag: javascript

VueJS – Transition not working

I’m trying to apply a transition whether a component has to be shown or not. I’m wondering why this simple example is not working: http://jsfiddle.net/bf830qoq/ Javascript HTML CSS Answer Your syntax is wrong, you have to use name attribute for transition, like following: See working fiddle.

Regex for a valid hashtag

I need regular expression for validating a hashtag. Each hashtag should starts with hashtag(“#”). Valid inputs: 1. #hashtag_abc 2. #simpleHashtag 3. #hashtag123 Invalid inputs: 1. #hashtag# 2. #hashtag@hashtag I have been trying with this regex /#[a-zA-z0-9]/ but it is accepting invalid inputs als…

update array of object without mutation

I’m following a react tutorial but I’m lost. I don’t understand starting line 9. so I tried to make a little miarature https://jsbin.com/sifihocija/2/edit?js,console but failed to produce the result that the author did, what’s wrong? Answer Issue is in this line: const index = list.fin…

Vue.js with Rails not working

I am trying to send an AJAX call to Rails Controller to fetch some data and use Vue.js to output it. But it doesn’t seem to be sending any kind of request to the Controller. What am I doing wrong here? Vue.js does work without AJAX call app/assets/javascript/calculator.js app/controllers/calculator_cont…

React: How to navigate through list by arrow keys

I have build a simple component with a single text input and below of that a list (using semantic ui). Now I would like to use the arrow keys to navigate through the list. First of all I have to select the first element. But how do I access a specific list element? Second I would get the information of

Adding minutes to datetime in momentjs

I need to add the variable secondsToMinutes to the startdate. secondsToMinutes is “3:20” startDate = “2:00 PM” endDate should equal “2:03:20 PM”. I’ve tried a number of ways and get errors each and every time. Date shows up as invalid date. Answer moment().format(&#82…