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String comparison in Python: is vs. == [duplicate]
...rally considered better to just use '==' by default, even
when comparing int or Boolean values?
You use == when comparing values and is when comparing identities.
When comparing ints (or immutable types in general), you pretty much always want the former. There's an optimization that allows sm...
Changing every value in a hash in Ruby
...erated over to produce an intermediate set of nested Arrays which are then converted into a new Hash. Ignoring the RAM peak usage, run time is much worse - benchmarking this versus the modify-in-place solutions in another answer show 2.5s versus 1.5s over the same number of iterations. Since Ruby ...
What is the difference between bindParam and bindValue?
...le rows with one time binding:
<?php
$stmt = $dbh->prepare("INSERT INTO REGISTRY (name, value) VALUES (?, ?)");
$stmt->bindParam(1, $name);
$stmt->bindParam(2, $value);
// insert one row
$name = 'one';
$value = 1;
$stmt->execute();
// insert another row with different values
$name...
Difference between File.separator and slash in paths
... problem with the performance, since you are expecting the separator to be converted into something else at runtime. Also, do not expect this to happen in all the unsupported JVM's out there.
– jpabluz
Mar 10 '10 at 14:28
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How do you Programmatically Download a Webpage in Java
...
For those looking to convert the InputStream to string, see this answer.
– SSight3
Aug 22 '19 at 15:40
...
How to get rid of punctuation using NLTK tokenizer?
...
why converting tokens to text?
– Sadik
Oct 15 '15 at 14:55
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How to display a dynamically allocated array in the Visual Studio debugger?
...array elements. However, if you have an array allocated dynamically and pointed to by a pointer, it will only display the first element of the array when you click the + to expand it. Is there an easy way to tell the debugger, show me this data as an array of type Foo and size X?
...
Getting hold of the outer class object from the inner class object
...from outside the code of the inner class though. Of course, you can always introduce your own property:
public OuterClass getOuter() {
return OuterClass.this;
}
EDIT: By experimentation, it looks like the field holding the reference to the outer class has package level access - at least with ...
How to append a char to a std::string?
...
You want to be careful with this because if you get into the habit, this will compile just fine if y is a char* instead of std::string. It'd add d characters to the pointer y.
– Zan Lynx
Mar 14 '11 at 23:28
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How can I determine if a date is between two dates in Java? [duplicate]
...alf-Open", symbolically [).
See both ways in the following code example.
Convert the java.util.Date instances to Joda-Time DateTime instances. Simply pass the Date instance to constructor of DateTime. In practice you should also pass a specific DateTimeZone object rather than rely on JVM’s defau...