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Stop an input field in a form from being submitted
I'm writing some javascript (a greasemonkey/userscript) that will insert some input fields into a form on a website.
12 Ans...
Find a value in an array of objects in Javascript [duplicate]
...ml#_searching-for-array-elements
https://developer.mozilla.org/en/docs/Web/JavaScript/Reference/Global_Objects/Array/find
To then replace said object (and use another cool ES6 method fill) you could do something like:
let obj = array.find(x => x.name === 'string 1');
let index = array.indexOf(o...
How do I cast a JSON object to a typescript class
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You can't simple cast a plain-old-JavaScript result from an Ajax request into a prototypical JavaScript/TypeScript class instance. There are a number of techniques for doing it, and generally involve copying data. Unless you create an instance of the class, i...
How to access accelerometer/gyroscope data from Javascript?
...ation, true);
After registering your event listener (in this case, a JavaScript
function called handleOrientation()), your listener function
periodically gets called with updated orientation data.
The orientation event contains four values:
DeviceOrientationEvent.absolute
De...
Is there a way to 'pretty' print MongoDB shell output to a file?
...res because it's an interactive environment.
When you run commands from a javascript file via mongo commands.js you won't get quite identical behavior.
There are two ways around this.
(1) fake out the shell and make it think you are in interactive mode
$ mongo dbname << EOF > output.jso...
Returning JSON from PHP to JavaScript?
...Query AJAX. I want the PHP script to return the data in JSON format to the javascript. Here's the pseudo code in the PHP script:
...
View markdown files offline [closed]
... MarkdownPad seemed to go into mothballs a while back, so I (Disclosure alert: Yes, I made & sell this) made MarkUpDown, which isn't too shabby at $15. Should be GitHub Markdown friendly, and if it isn't, let me know how it isn't & I'll get it fixed.
– ruffin
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How to test an Internet connection with bash?
...testing if my website is accessible. If it's NOT accessible a popup window alerts me to a problem.
The script below prevents me from receiving popup messages every five minutes whenever my laptop is not connected to the network.
#!/usr/bin/bash
# Test for network conection
for interface in $(ls /sy...
How to pass event as argument to an inline event handler in JavaScript?
... "(event)" parameter should be put into the function call, when, actually, JavaScript has the "event" parameter already and readily available inside the called function, so there is no need to declare it (it took me days to realise that it made no difference changing the variable name, because it wa...
Check if an element contains a class in JavaScript?
Using plain JavaScript (not jQuery), Is there any way to check if an element contains a class?
26 Answers
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