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How to get the ASCII value in JavaScript for the characters [duplicate]
Here is the example: Expand snippet Or if you have longer strings: Expand snippet String.charCodeAt(x) method will return ASCII character code at a given position.
Bootstrap popover is not working
From the Docs on Popovers: Opt-in functionality:For performance reasons, the Tooltip and Popover data-apis are opt-in, meaning you must initialize them yourself. So you must call .popover() manually in JavaScript like this: Or you can use whatever selector you want Here’s an example using StackSnippets. Show code snippet Note: This is similar to the answer … Read more
Passport.js – Error: failed to serialize user into session
It looks like you didn’t implement passport.serializeUser and passport.deserializeUser. Try adding this:
Vue ‘export default’ vs ‘new Vue’
When you declare: That is typically your root Vue instance that the rest of the application descends from. This hangs off the root element declared in an html document, for example: The other syntax is declaring a component which can be registered and reused later. For example, if you create a single file component like: … Read more
How to get the difference between two arrays in JavaScript?
This answer was written in 2009, so it is a bit outdated, also it’s rather educational for understanding the problem. Best solution I’d use today would be (credits to other author here) I assume you are comparing a normal array. If not, you need to change the for loop to a for .. in loop.
Seeding the random number generator in Javascript
No, it is not possible to seed Math.random(), but it’s fairly easy to write your own generator, or better yet, use an existing one. Check out: this related question. Also, see David Bau’s blog for more information on seeding.
jQuery equivalent of querySelector
So it seems that there is no equivalent of querySelector in jQuery, or in other libraries I’ve looked at. The workaround is to select all matching elements (equivalent to querySelectorAll) then filter out the first one. This can be done using [0] (returns a html node) or as suggested by @Mutnowski with eq(0) or first … Read more
How to execute a JavaScript function when I have its name as a string
Don’t use eval unless you absolutely, positively have no other choice. As has been mentioned, using something like this would be the best way to do it: That, however, will not work with a namespace’d function: This is how you would do that: In order to make that easier and provide some flexibility, here is … Read more
Convert UTC Epoch to local date
I think I have a simpler solution — set the initial date to the epoch and add UTC units. Say you have a UTC epoch var stored in seconds. How about 1234567890. To convert that to a proper date in the local time zone: d is now a date (in my time zone) set to … Read more