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Set custom HTML5 required field validation message
I have one form with many input fields. I have put html5 validations
11 Answers
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How to convert an int to string in C?
...make a function that converts the data of a struct into a string to save it in a file.
10 Answers
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Understanding Node.js modules: multiple requires return the same object?
...every call to require('foo') will get exactly the same object returned, if it would resolve to the same file.
The situation is different when a.js, b.js and app.js are in different npm modules. For example:
[APP] --> [A], [B]
[B] --> [A]
In that case the require('a') in app.js would ...
Get all non-unique values (i.e.: duplicate/more than one occurrence) in an array
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You could sort the array and then run through it and then see if the next (or previous) index is the same as the current. Assuming your sort algorithm is good, this should be less than O(n2):
const findDuplicates = (arr) => {
let sorted_arr = arr.slice().sort(...
If my interface must return Task what is the best way to have a no-operation implementation?
...e below, due to the interface, the class LazyBar must return a task from its method (and for argument's sake can't be changed). If LazyBar s implementation is unusual in that it happens to run quickly and synchronously - what is the best way to return a No-Operation task from the method?
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Can the :not() pseudo-class have multiple arguments?
...ust use two :not:
input:not([type="radio"]):not([type="checkbox"])
Yes, it is intentional
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How to make ReSharper re-evaluate its assembly reference highlighting
...ject Template, and the template works great. But after I create a project with the template some of the files look like this:
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JavaScript - onClick to get the ID of the clicked button
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You need to send the ID as the function parameters. Do it like this:
<button id="1" onClick="reply_click(this.id)">B1</button>
<button id="2" onClick="reply_click(this.id)">B2</button>
<button id="3" onClick="reply_click(this.id)">B3</butto...
How to calculate dp from pixels in android programmatically [duplicate]
I want to calculate dp from px programmatically. How to do it?
I get resolution from:
4 Answers
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Why isn't sizeof for a struct equal to the sum of sizeof of each member?
... a hard error (often SIGBUS).
Mis-aligned access might be a soft error.
Either corrected in hardware, for a modest performance-degradation.
Or corrected by emulation in software, for a severe performance-degradation.
In addition, atomicity and other concurrency-guarantees might be broken, leading ...