I’m using the following code to negate the characters in the regexp. By checking the inverse, I can determine if the value entered is correctly formatted. Essentially, any digit can be allowed but only one decimal point (placed anywhere in the string.) The way I have it now, it catches all numerals, but…
Tag: javascript
How to await the ajax request?
I am trying to write a JS code that will cancel the “btn_submit” buttons .onclick event if the given number already exists in the database. I use AJAX to query the DB for the given number and to determine if the should send the data to a .php site which will upload the question. To determine this …
Port Knocking UDP with Javascript in Browser
So I am trying to send a port knock sequence from javascript. The TCP part is simple enough with websockets. I’ve read that WebRTC is the closest thing the browser offers to sending a UDP packet… but WebRTC is a lot to digest just to attempt to send a UDP “knock”. Is it even possible t…
How to fetch value from Promise object after promise has been resolved
Please note This is a contrived example. Problem I am unable to figure out how to return any kind of object/function for further downstream processing after shortAfterLongFunc completes. I can console.log from shortAfterLongFunc but that’s not what i require here. Fiddle Here Thanks for looking! UPDATE:…
JQuery.css(“display”) = “block” not working
I wanted to show and hide my TextBox based on value selected in RadiobuttonList. I wrote the following code for that Though I had achieved my task by using JQuery.show() and JQuery.hide() but was not satisfied as I wanted to know why first approach failed. Second is I used $(“#<%= rbtnIsPFEnabled.Cli…
Is a JavaScript array index a string or an integer?
I had a generic question about JavaScript arrays. Are array indices in JavaScript internally handled as strings? I read somewhere that because arrays are objects in JavaScript, the index is actually a string. I am a bit confused about this, and would be glad for any explanation. Answer That is correct so:
Best way to reset all values in an Javascript object
My javascript object looks something like: Upon some events in my code, I would like to reset these values to undefined like below: I use libraries like lodash, however i don’t see any function that would perform this. I know how to do this manually, but I was wondering if there is a “Best practic…
Jquery datepicker change event trigger and input’s default change event
I have datepicker When I first change ‘.inp’ manually type there a value, then immediately I click on datepicker’s opened calendar. I get two ‘change’ event listeners. First from manual change, then from datepicker change. How can I avoid this? Answer Set your input readOnly, it …
TypeError: Router.use() requires middleware function but got a Object
There have been some middleware changes on the new version of express and I have made some changes in my code around some of the other posts on this issue but I can’t get anything to stick. We had it working before hand but I can’t remember what the change was. app.js It appears the answer to this…
jquery select change event when get selected option
I am trying to redirect on a specific url when user select an option here is the code i am using and the script I want to redirect to /ver/valueSelected Answer HTML JS There are a few fallacies that you should be aware of, when using this method: The event will only trigger onChange. Hence, the default disabl…