Here’s is my code When I run this code alert (hi) appears first and then jAlert appears, but the control remains with alert (The “Ok” button of jAlert doesn’t work) but once I press “Ok” in the alert box disappears along with the jAlert and jConfirm pops up. And also if I r…
Tag: javascript
Check if variable is false and not either true or undefined
What’s the best way to check if myvar javascript variable === false or not (it may be undefined as well). would be fine but myvar it could be undefined. Only false value is acceptable, not undefined. Any shorter than if (typeof myvar !== “undefined” && myvar === false)? Answer If the…
javascript fizzbuzz switch statement
I’m currently taking the code academy course on Javascript and I’m stuck on the FizzBuzz task. I need to count from 1-20 and if the number is divisible by 3 print fizz, by 5 print buzz, by both print fizzbuzz, else just print the number. I was able to do it with if/ else if statements, but I wante…
Bootstrap button drop-down inside responsive table not visible because of scroll
I have a problem with drop-down buttons inside tables when are responsive and scroll active because the drop-down is not visible because of overflow: auto; property. How can I fix that in order to show drop-down option of button when this is collapsed? I can use some jQuery but after I have problems with scro…
Add tags to div using Javascript
There are quite a few similar questions, but none are quite what I need nor can I fiddle them around to fit what I’m trying to do. I have the following: And would like to, somehow, add the <span> tags around name using the above. I’m attempting to create a simple chat AI for fun, and want to…
How to use Meteor.users.update to inc a variable in a case specific object?
I need to inc a variable within the case specific object in an array in the profile object in the users object/mongo collection. The case specific object’s name will equal a local variable, and the I want to inc the variable num by 1. What would the syntext for this look like? Answer I don’t know …
Moment.js get the week number based on a specific day (also past years)
How could I get from moment JS the week number from a date in the past only from a moment formatted object from a day selected? Answer According momentjs docs: Because different locales define week of year numbering differently, Moment.js added moment#week to get/set the localized week of the year. The week o…
_.chain – underscore JS
This code works fine Is it possible to use the _.chain() function to clean this code up? I’ve tried to code below, but it gives a Type error. Answer You just need to remove the first argument (arr) from each of the functions you have inside the _.chain() and _.value() (as they are now gather from the ch…
Clear the console in Firefox
Is there a way to clear the console in Firefox? In Chrome I can use… (Not sure if it works for Safari or Opera though) However I haven’t been able to find a solution for Firefox. Is this type of API not yet available? Is there a workaround that doesn’t require? Answer In firefox you can just…
Difference between microtask and macrotask within an event loop context
I’ve just finished reading the Promises/A+ specification and stumbled upon the terms microtask and macrotask: see http://promisesaplus.com/#notes I’ve never heard of these terms before, and now I’m curious what the difference could be? I’ve already tried to find some information on the…