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What's the (hidden) cost of Scala's lazy val?
...he following Java code:
class LazyTest {
public int bitmap$0;
private String msg;
public String msg() {
if ((bitmap$0 & 1) == 0) {
synchronized (this) {
if ((bitmap$0 & 1) == 0) {
synchronized (this) {
msg = "Lazy";
...
Git pull after forced update
...-pick commits over.
Ex:
git checkout feature-old # some branch with the extra commits
git log # gives commits (write down the id of the ones you want)
git checkout base-branch # after you have already cleaned your local copy of it as above
git checkout -b feature-new # make a n...
Check that an email address is valid on iOS [duplicate]
...
Good cocoa function:
-(BOOL) NSStringIsValidEmail:(NSString *)checkString
{
BOOL stricterFilter = NO; // Discussion http://blog.logichigh.com/2010/09/02/validating-an-e-mail-address/
NSString *stricterFilterString = @"^[A-Z0-9a-z\\._%+-]+@([A-Za-z0-9...
How To Change DataType of a DataColumn in a DataTable?
... Love the solution - Elegant! However ImportRow() does not seem to convert string values to float values for me. Am I missing something here?
– yangli.liy
Sep 17 '14 at 15:54
2
...
Match multiple cases classes in scala
...
Looks like you don't care about the values of the String parameters, and want to treat B and C the same, so:
def matcher(l: Foo): String = {
l match {
case A() => "A"
case B(_) | C(_) => "B"
case _ => "default"
}
}
If you must, must, must extract ...
What is the best collation to use for MySQL with PHP? [closed]
...QL (most currently distributed versions) where functions always return the string using utf8_general_ci, causing problems if you're using another collation for your strings - see bugs.mysql.com/bug.php?id=24690
– El Yobo
Feb 9 '11 at 10:49
...
What is the smallest possible valid PDF?
...4-representation of a PDF. So, if anyone is interested, here is the base64-string of the 138 bytes version: JVBERi0xLjAKMSAwIG9iajw8L1BhZ2VzIDIgMCBSPj5lbmRvYmogMiAwIG9iajw8L0tpZHNbMyAw\nIFJdL0NvdW50IDE+PmVuZG9iaiAzIDAgb2JqPDwvTWVkaWFCb3hbMCAwIDMgM10+PmVuZG9iagp0\ncmFpbGVyPDwvUm9vdCAxIDAgUj4+Cg==
...
Can't access object property, even though it shows up in a console log
....
Instead, try console.log(Object.keys(config)), or even console.log(JSON.stringify(config)) and you will see the keys, or the state of the object at the time you called console.log.
You will (usually) find the keys are being added after your console.log call.
...
Android splash screen image sizes to fit all devices
...ldpi ~ 120dpi)
Medium Density (mdpi ~ 160dpi)
High Density (hdpi ~ 240dpi)
Extra-High Density (xhdpi ~ 320dpi)
(These dpi values are approximations, since custom built devices will have varying dpi values)
What you (if you're a designer) need to know from this is that Android basically chooses fro...
How can I check if a var is a string in JavaScript?
How can I check if a var is a string in JavaScript?
7 Answers
7
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