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How can I listen to the form submit event in javascript?
...documentation on MDN.
To cancel the native submit event (prevent the form from being submitted), use .preventDefault() in your callback function,
document.querySelector("#myForm").addEventListener("submit", function(e){
if(!isValid){
e.preventDefault(); //stop form from submitting
...
Why does struct alignment depend on whether a field type is primitive or user-defined?
...d for padding so in actuality every structure is at least 16 bytes in size from the get go.
if you add 16 bytes from ints and a string ref to: 0000000003e72d18 + 8 bytes EE/padding you will end up at 0000000003e72d30 and this is the staring point for string reference, and since all references are ...
When should the volatile keyword be used in C#?
...rantee that every processor stops what it
is doing and updates caches to/from main memory. Rather, they provide
weaker guarantees about how memory accesses before and after reads and
writes may be observed to be ordered with respect to each other.
Certain operations such as creating a new th...
How to make Java honor the DNS Caching Timeout?
... the load-balancing to work, the application server needs to honor the TTL from DNS response and to resolve the domain name again when cache times out. However, I couldn't figure out a way to do this in Java.
...
How do I check if a number is a palindrome?
...t number system, being able to add will do (think how you commonly convert from decimal to binary - being used to think computation means binary doesn't mean you can't do, e.g., decimal arithmetic (and you can do conversion from binary to decimal without division or modulo 2).
–...
Convert a float64 to an int in Go
... in Go? I know the strconv package can be used to convert anything to or from a string, but not between data types where one isn't a string. I know I can use fmt.Sprintf to convert anything to a string, and then strconv it to the data type I need, but this extra conversion seems a bit clumsy -...
Java synchronized method lock on object, or method?
...chronize on the whole object, so two thread accessing a different variable from this same object would block each other anyway.
If you want to synchronize only on one variable at a time, so two threads won't block each other while accessing different variables, you have synchronize on them separat...
Convert from ASCII string encoded in Hex to plain ASCII?
How can I convert from hex to plain ASCII in Python?
8 Answers
8
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Which iomanip manipulators are 'sticky'?
...
Important notes from the comments below:
By Martin:
@Chareles: Then by this requirement all manipulators are sticky. Except setw which seems to be reset after use.
By Charles:
Exactly! and the only reason that setw appears to ...
Why do people use __(double underscore) so much in C++
...
From Programming in C++, Rules and Recommendations :
The use of two underscores (`__') in identifiers is reserved for the compiler's internal use according to the ANSI-C standard.
Underscores (`_') are often used in ...