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Illegal string offset Warning PHP
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What about explaining why this works and why the OP's code doesn't? Answers like these are the main reason why people are sceptical of Stack Overflow, even though there are lots of people who are willing to explain every detail in their answers and actually crea...
How can I increment a date by one day in Java?
...Docs would clarify that this would increment larger fields (like the month and year). Calendar.roll "Adds or subtracts (up/down) a single unit of time on the given time field without changing larger fields" .. Again, "larger fields" is vague but that seems consistent with Sam's comment. I wish t...
How to declare Return Types for Functions in TypeScript
...eturn type is specified on the greet() function. Change the type to number and you'll get warnings.
class Greeter {
greeting: string;
constructor (message: string) {
this.greeting = message;
}
greet() : string {
return "Hello, " + this.greeting;
}
}
var greeter...
How to convert an ArrayList containing Integers to primitive int array?
...ze the fact the ArrayList implements Iterable (via Collection inheritance) and do: for(int n : integer) { ret[counter++] = n; } ... and initialize int counter = 0;
– gardarh
Feb 14 '14 at 15:04
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'const string' vs. 'static readonly string' in C#
...e a const value in a different assembly, then update the original assembly and change the value, the other assembly won't see the change until you re-compile it.
A static readonly string is a normal field that gets looked up at runtime. Therefore, if the field's value is changed in a different ass...
sprintf like functionality in Python
I would like to create a string buffer to do lots of processing, format and finally write the buffer in a text file using a C-style sprintf functionality in Python. Because of conditional statements, I can’t write them directly to the file.
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Clear Application's Data Programmatically
...ationUserData().
I highly recommend using it in new applications:
import android.os.Build.*;
if (VERSION_CODES.KITKAT <= VERSION.SDK_INT) {
((ActivityManager)context.getSystemService(ACTIVITY_SERVICE))
.clearApplicationUserData(); // note: it has a return value!
} else {
// ...
Using braces with dynamic variable names in PHP
...t $variableName between {} :
${$variableName} = $value;
Using {} is only mandatory when the name of your variable is itself a composition of multiple values, like this :
${$variableNamePart1 . $variableNamePart2} = $value;
It is nevertheless recommended to always use {}, because it's more readable...
Escaping a forward slash in a regular expression
My question is a simple one, and it is about regular expression escaping. Do you have to escape a forward slash / in a regular expression? And how would you go about doing it?
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How to access a preexisting collection with Mongoose?
... change the collection name at runtime? I have 5 collections of UserSchema and I want to give each one a different name Eg: users_server1, users_server2, users_server3...
– Ragnar
Jun 6 '14 at 20:41
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