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Java SecurityException: signer information does not match
...s more often, at least one is signed and one or more others are not (which includes classes loaded from directories since those AFAIK cannot be signed).
So either make sure all JARs (or at least those which contain classes from the same packages) are signed using the same certificate, or remove the...
npm install errors with Error: ENOENT, chmod
...pp was not copying the bin directory. I found this to be because I did not include it in the files in my package.json
"files": [
"lib",
"bin" // this was missing
]
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SQL Server: Make all UPPER case to Proper Case/Title Case
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You should probably include an apostrophe as a white-space character by default so a name like O'DONNELL won't change to O'donnell.
– JustinStolle
Sep 22 '11 at 20:15
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Do I use , , or for SVG files?
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What's the right way to set a size? Do I include height and width atributes, or do I use CSS?
– artlung
Dec 20 '10 at 12:26
5
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Heroku free account limited?
...mited to 100MB of disk space, but you are not permitted to save any files (including user uploads) to disk because the filesystem is readonly. The 100MB of disk space is for your application code and other assets. The 100MB is the maximum slug size, and includes all gems referenced by your project."...
Why is Cache-Control attribute sent in request header (client to server)?
...hained cache.
Thus in order to get the response always from the server we include cache-control in request headers. This will insure that response is always from the server.
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Ruby: Easiest Way to Filter Hash Keys?
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The easiest way is to include the gem 'activesupport' (or gem 'active_support').
Then, in your class you only need to
require 'active_support/core_ext/hash/slice'
and to call
params.slice(:choice1, :choice2, :choice3) # => {:choice1=>"O...
Do you need to close meta and link tags in HTML?
...elements need to be closed by end tags. The answer is that non-XHTML HTML (including HTML5 in HTML serialization), no end tag is required or allowed for meta and link elements. In practice, however, browsers just ignore explicit end tags for them, as well as the cargo-cult / before >, if you use ...
How to get the return value from a thread in python?
...stdlib concurrent.futures module provides a higher level API to threading, including passing return values or exceptions from a worker thread back to the main thread:
import concurrent.futures
def foo(bar):
print('hello {}'.format(bar))
return 'foo'
with concurrent.futures.ThreadPoolExecu...
'printf' vs. 'cout' in C++
...s. In fact, Clang can do that without enabling warnings.
$ cat safety.c
#include <stdio.h>
int main(void) {
printf("String: %s\n", 42);
return 0;
}
$ clang safety.c
safety.c:4:28: warning: format specifies type 'char *' but the argument has type 'int' [-Wformat]
printf("String...