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Can HTML checkboxes be set to readonly?
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PS...if you want the checkbox to be in the checked state you need to add checked="checked", not mess with the javascript. The javascript is just there to force mouse clicks to be ignored on the input object, not to set state of th...
Why should I use Deque over Stack?
...ecause it's a subclass of Vector.
Oh, and also Stack has no interface, so if you know you need Stack operations you end up committing to a specific concrete class, which isn't usually a good idea.
Also as pointed out in the comments, Stack and Deque have reverse iteration orders:
Stack<Integer...
Difference between Service, Async Task & Thread?
What is the difference between Service, Async Task & Thread. If i am not wrong all of them are used to do some stuff in background. So, how to decide which to use and when?
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How to list all the files in a commit?
...d Way (because it's a plumbing command; meant to be programmatic):
$ git diff-tree --no-commit-id --name-only -r bd61ad98
index.html
javascript/application.js
javascript/ie6.js
Another Way (less preferred for scripts, because it's a porcelain command; meant to be user-facing)
$ git show --pretty...
Fast way of counting non-zero bits in positive integer
...nd, gmpy popcount() took about 1/20th of the time of bin(n).count("1"). So if you can install gmpy, use that.
To answer a question in the comments, for bytes I'd use a lookup table. You can generate it at runtime:
counts = bytes(bin(x).count("1") for x in range(256)) # py2: use bytearray
Or jus...
Why do loggers recommend using a logger per class?
...capture the source of the log message (ie. the class writing to the log). If you don't have one logger per class, but instead have one logger for the entire app, you need to resort to more reflection tricks to know where the log messages are coming from.
Compare the following:
Log per class
usi...
How to succinctly write a formula with many variables from a data frame?
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There is a special identifier that one can use in a formula to mean all the variables, it is the . identifier.
y <- c(1,4,6)
d <- data.frame(y = y, x1 = c(4,-1,3), x2 = c(3,9,8), x3 = c(4,-4,-2))
mod <- lm(y ~ ., data = d)
You can also d...
PHP String to Float
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^worth noting that (float) removes 0 from string if it's the first digit
– user3608589
Jan 24 '17 at 12:47
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Java: parse int value from a char
I just want to know if there's a better solution to parse a number from a character in a string (assuming that we know that the character at index n is a number).
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Is it not possible to stringify an Error using JSON.stringify?
...using web sockets. I can replicate the issue I am facing using JSON.stringify to cater to a wider audience:
10 Answers
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