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How do I get AWS_ACCESS_KEY_ID for Amazon?
...entials page won't reveal your AWS_SECRET_ACCESS_KEY. As this blog points out:
Secret access keys are, as the name implies, secrets, like your
password. Just as AWS doesn’t reveal your password back to you if you
forgot it (you’d have to set a new password), the new security
credentia...
How different is Objective-C from C++? [closed]
... the function name as well as just the types of the parameters/return (without their names).
C++ uses bool, true and false, Objective-C uses BOOL, YES and NO.
C++ uses void* and nullptr, Objective-C prefers id and nil.
Objective-C uses "selectors" (which have type SEL) as an approximate equivalent t...
Sample settings.xml for maven
...ware distributed under the License is distributed on an
"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
KIND, either express or implied. See the License for the
specific language governing permissions and limitations
under the License.
-->
Main docs and top:
<!--
| This is the config...
WPF Button with Image
... This is a pretty bad solution as the text and image won't be grayed out when you disable the button.
– Num Lock
May 24 '17 at 9:22
5
...
Send POST Request with Data Specified in File via Curl
...t/xml" \
--data-binary "@path/to/file"
In the example above, -i prints out all the headers so that you can see what's going on, and -X POST makes it explicit that this is a post. Both of these can be safely omitted without changing the behaviour on the wire. The path to the file needs to be pr...
Remove duplicated rows using dplyr
...d will just be
able to write row_number() == 1)
I've also been thinking about adding a slice() function that would
work like:
df %>% group_by(x, y) %>% slice(from = 1, to = 1)
Or maybe a variation of unique() that would let you select which
variables to use:
df %>% unique(x, y)
...
Associative arrays in Shell scripts
...
I think that you need to step back and think about what a map, or associative array, really is. All it is is a way to store a value for a given key, and get that value back quickly and efficiently. You may also want to be able to iterate over the keys to retrieve every ke...
What is the difference between float and double?
I've read about the difference between double precision and single precision. However, in most cases, float and double seem to be interchangeable, i.e. using one or the other does not seem to affect the results. Is this really the case? When are floats and doubles interchangeable? What are the d...
Using “Object.create” instead of “new”
...he other hand we only run into this problem if we were to explicitly write out Animal.prototype.traits = {};. One method is implicit the other explicit. Don't chose the one that leads to problems.
– Noel Abrahams
Jun 16 '13 at 10:14
...
How to forward declare a template class in namespace std?
... relevant text if necessary.
Just #include <list> and don't worry about it.
Oh, incidentally, any name containing double-underscores is reserved for use by the implementation, so you should use something like TEST_H instead of __TEST__. It's not going to generate a warning or an error, but i...