Consider the following code (React JS code): Notice the console.log. Lets see an image: Last I checked, reverse should have reversed the order of the array. Yet it doesn’t. Am I Using this wrong (official MDN Docs)? Why isn’t reverse working? Answer As described at https://developer.mozilla.org/en…
Author: admin@master
Matching words starting and ending with same vowel letter
I am trying to come up with a regex to match words starting and ending with same vowel. My question is, is this an elegant all-encompassing solution or am i missing something? So far this is what I have come up after a quick brainstroming. My preferred environment is javascript/python without special librarie…
Halt Leaflet event propagation
I am working on a project that uses Leaflet. I have a big map that I am rendering in a browser div, and I am rendering a popup div (using z-ordering) above it when a user clicks on an element. The problem is that if you click on the ‘pop up window’ and drag, leaflet drags the underlying map as
Meteor server throws error with Accounts.addEmail() in a meteor method
I need help figuring out why I am getting this error. My method is defined in app/server/methods.js My template has an event that is calling this method from the client. I keep getting an Internal Server Error [500] error back to the console. When I check my server output it says: Exception while invoking met…
Get contact email addresses using Google People API in Javascript
I wanted to retrieve the email address of the contacts for a user. I am planning to use Google People API. Here is my function to retrieve: Basically, I am fetching 200 connections to retrieve their resourceName. This reresourceName will be used to get the email address of the user. I am using a batch request…
Using loops and promises in transactions in Sequelize
I am currently building a Nodejs, Express, Sequelize (w. PostgreSQL) app, and have run into a few problems with using promises together with transactions and loops. I am trying to figure out how to use a for loops in a transaction. I am trying to loop through a list of members and create a new user in the dat…
Conditional loop clearing of HR infotype itab lines?
I have no idea about ABAP – but my colleague (also no idea about it) showed me some code he came up with and it consisted of wayyy too many if-statements. In JavaScript I could’ve improved it but in ABAP I’m a bit lost because I’m missing my Arrays ;). I found out that internal Tables …
flatten an array recursively
I tried to implement an array flatten function recursively. Here is the code: But I don’t know why the result is not correct. Please help me explain it. Answer The concat() method returns a new array comprised of the array on which it is called joined with the array(s) and/or value(s) provided as argume…
Cancel ajax request from chrome developer tools
I want to cancel the ajax request from chrome developer tools after it has initiated. For example I want to test my fallback message is showing correctly. I can set No throttling to Offline so that all calls will fail, but I just want to test one API to fail, for debugging purposes. I know I can use abort() m…
multiple iron-collapse not working, expands only first
I’m trying to create multiple iron-collapse elements with content inside. I want the iron-collapse to expand when user clicks on a button. The problem is that I can’t get each element expanded individually. The script catches only first element and does not affect the others. I’ve tried many…