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How to declare an array in Python?
... contains references to items. Also, underlying array is created with some extra space.
Consequences of this are:
random access is really cheap (arr[6653] is same to arr[0])
append operation is 'for free' while some extra space
insert operation is expensive
Check this awesome table of operation...
How to get Android crash logs?
...hrowable e) {
StackTraceElement[] arr = e.getStackTrace();
String report = e.toString()+"\n\n";
report += "--------- Stack trace ---------\n\n";
for (int i=0; i<arr.length; i++) {
report += " "+arr[i].toString()+"\n";
}
report += "---...
How to fix: android.app.RemoteServiceException: Bad notification posted from package *: Couldn't cre
...ant to reference R.drawable.my_image, it's safer to save it to bundle as a string( bundle.putString("img", "my_image")and then convert when needed to actual @DrawableRes integer as follows: ctx.resources.getIdentifier(bundle.getString("img"), "drawable", ctx.packageName)
– vano...
Reading a file line by line in Go
...tion into your own function which calls ReadLine in a for-loop.
bufio.ReadString('\n') isn't fully equivalent to ReadLine because ReadString is unable to handle the case when the last line of a file does not end with the newline character.
...
HTML character decoding in Objective-C / Cocoa Touch
...;number>; they are called numeric entity references. Basically, it's a string representation of the byte that should be substituted. In the case of &#038;, it represents the character with the value of 38 in the ISO-8859-1 character encoding scheme, which is &.
The reason the ampersand...
How do you disable browser Autocomplete on web form field / input tag?
... the code that generates the page, perhaps by adding some session-specific string to the end of the names.
When the form is submitted, you can strip that part off before processing them on the server side. This would prevent the web browser from finding context for your field and also might help ...
How do I disable a Pylint warning?
...
List with the actual strings to use: gist.github.com/m451/965bb613177dd4fa896b815aa0e0e365
– masi
Apr 7 at 11:55
add a co...
MySQL Error 1215: Cannot add foreign key constraint
... @www.jensolsson.se You are correct, if the PK includes one or more string columns then they must use the same character set and collation. In this specific case the PK was an INT so the character set of the table and/or columns was not relevant.
– Ike Walker
...
How to handle configuration in Go [closed]
...ing/json"
"os"
"fmt"
)
type Configuration struct {
Users []string
Groups []string
}
file, _ := os.Open("conf.json")
defer file.Close()
decoder := json.NewDecoder(file)
configuration := Configuration{}
err := decoder.Decode(&configuration)
if err != nil {
fmt.Println("err...
What is the difference between . (dot) and $ (dollar sign)?
...fore cannot be used with the . operator.
show can take an Int and return a String.
putStrLn can take a String and return an IO ().
You can chain show to putStrLn like this:
(putStrLn . show) (1 + 1)
If that's too many parentheses for your liking, get rid of them with the $ operator:
putStrLn ....