What could happen if my template looks for variables which weren't assigned?
For example:
var uwfs_id = '{$tpl_uwfs_id}';
This snippet is from my javascript code. I outputted the value and it is simply empty. I know I could use isset(). But I couldn't find anything about how Smarty handles non-existing variables. So, what happens if template can't find a variable, because it wasn't assigned?
In debug | Immediate window, why do i get this error:
szTemp is a local variable at
{,,Util.dll}MySock.Write("%s",szTemp)
CXX0017: Error: symbol "szTemp" not
found
int SomeFunction( ..)
{
char* szSQL = new char[1024];
.
.
---> Breakpoint.. Trying to run the expression here..
.
.
}
Every example I see seems to be for recursively getting files in subdirectories uses files only. What I'm trying to do is search a folder for a particular subdirectory named "xxx" then save that path to a variable so I can use it for other things.
Is this possible without looping through all the directories and comparing by name?
What's going on when the assignment statement executed at Line 4, does compiler ignore the new operator and keep the foo variable being null or something else happen to handle this awkward moment?
public class Foo {
// creating an instance before its constructor has been invoked, suppose the "initializing"
// gets printed in constructor as a result of the next line, of course it will not print it
private Foo foo = new Foo();//Line 4
public Foo() {
System.out.println("initializing");
}
}
I have two variable TO_DATE and FROM_DATE. My table has two fields DOJ and DOL. I want to select all the records whose DOJ < TO_DATE and DOL FROM_DATE.
How can i write an SQL query in for this??
I have a script that has a GET variable: $_GET['percentage']
I have a MySQL table of data.
Now lets say that there are 100 rows of data in this table.
In pseudo-code:
SELECT data FROM table
Now would it be possible to select $_GET['percentage'] of random data from table?
For example (again in pseudo-code):
$_GET['percentage'] = 10;
SELECT 10% of data from table order by rand()
If this IS possible, how could I do it?
I'm trying to figure out why a variable isn't triggering a conditional that it should. var_dump reports something like this:
string(20) "0"
Why is it reporting a length of 20 when the length is clearly 1?
I'd like to know how to use XMLHttpRequest to load the content of a remote URL and have the HTML of the accessed site stored in a JS variable.
Say, if I wanted to load and alert() the HTML of http://foo.com/bar.php, how would I do that?
I am pulling the dates of various posts from a database. The dates are in the following format:
2009-08-12
Numeric Year - Numeric Month - Numeric Day
How can I reformat these dates to something more user friendly like:
August 12, 2009
Numeric Month Numeric Date, Numeric Year
Assuming that the date gotten from the mysql database is stored in a variable called:
$date = $row['date_selected'];
So given a static type in your code you can do
var defaultMyTypeVal = default(MyType);
How would you do the same thing given a variable of Type so you can use it during runtime?
In other words how do I implement the following method without a bunch of if statements or using Generics (because I will not know the type I'm passing into the method at compile time)?
public object GetDefaultValueForType(Type type) {
....
}
How can i concate this string in mysql
desc=desc+$desct
what i want is each time i insert a variable from PHP that the string is added to the string which was already in db and seperated with ||
the field desc should look like this
desc
10||30||90||710
say i want to add the value 20
desc
10||30||90||710||20
then the desc field should look like this
How can i implement this?
In which class the length variable is defined in java(one used for printing array length)?
Will I be able to see it defined say in Object class?
EDIT : Why was this field so designed(any thing related with security or memory efficiency)?
hi,
I have a variable which stores the path on Windows. I want to replace all the \ with / in the path.
for eg. $path = C:\Users\scripts.ps1
Am new to Perl and tried something like
$path = s/\////
But it didnt work. can you please help me out....
Hi all,
I'd like to determine the environment's current codepage at runtime from a Unix shell script. What's the most reliable way of doing this?
I'm looking into parsing environment variable $LC_ALL, but it isn't always set to a useful value, and its format seems to vary (can be <locale, or <locale.<code page, or <locale.<code page@<modifier etc...).
Is there a better way? I'm essentially after a shell equivalent of what I'd get if I called nl_langinfo(CODESET) from C.
Hi,
i have a stylesheet and a lot of styles with the same border color (#CCCCCC to be precise).
Is there a way to specify some kind of variable and reuse that, so in stead of typing #CCCCCC over and over, i can type
border: 1px solid $bordercolor;
ps i'm using asp.net mvc
I have just seen this in code
var thisYear = (new Date()).getFullYear();
See it live on JSbin.
This is cool, as I've always done something like that in 2 lines, i.e. create the new object instance and assigned it to a variable, then called the method on it.
Is this new method fine to use everywhere? Any gotchas?
How do I inspect the return value of this GetItems() function using the debugger? Do I have to create a local variable for the results to accomplish this?
foreach (string item in GetItems())
{
// some code
}
private List<string> GetItems()
{
// return some list
}
I have an attribute in my AR:B that is not serializeable.
o = Discussion.find(6)
Marshal.dump(o)
TypeError: no marshal_dump is defined for class Proc
from (irb):10:in `dump'
I know the culprit and what I want is to set this variable to nil
before any serialization takes place.
I can do this but I'm stuck with the proper way to override marshal_dump
def marshal_dump
@problem = nil
# what is the right return here?
end
Or is there is way to tell Ruby or AR not to serialize an object?
I'm doing a library that makes extensive use of a thread local variable.
Can you point to some benchmarks that test the performances of the different ways to get thread local variables in C++:
C++0x thread_local variables
compiler extension (Gcc __thread, ...)
boost::threads_specific_ptr
pthread
Windows
...
Does C++0x thread_local performs much better on the compilers providing it?
Hi,
I have Ienum which contains number Data inside it.
Attached the snapShot of Viual Studio, Enum that Contains Data:
Just to brief about the above image, eLevelData is the IEnumerable variable, in which I have my data .
Now I want to go to the data at index 4 or 5, but I don't want to use foreach loop. Any suggestions please.
Thanks,
Subhen
Hi, i need to get all the HTML TEXT from a url "http://localhost/index.html" to a String variable on C
I know that if i put on telnet - telnet www.google.com 80 Get webpage.... it returns all the html.
How i can do it? im on linux enviroment? with C (NOT C++).
BTW im .net programmer :/
How to project an ASP Classic page with either HTTP AUTH (you must provide a username and password to OrderGroove) or a randomly generated access key that will be included as one of the parameters of the HTTP POST using the variable name access_key.
Can anybody provide asp classic code in this regard?
Quick help will be appreciated...
I'm trying to integrate the MCPKit MySQL framework available at http://mysql-cocoa.sourceforge.net/ into my cocoa application. I've added the framework and included the header file but when I try to define my first MCPConnection variable it says "MCPConnection undeclared". Is anyone successfully using MCPKit on leopard ? Or is there another framework that people use to access MySQL ?
In C, it is considered bad practice to call strlen like this:
for ( i = 0; strlen ( str ) != foo; i++ )
{
// stuff
}
The reason, of course, is that it is inefficient since it "counts" the characters in a string multiple times.
However, in Python, I see code like this quite often:
for i in range ( 0, len ( list ) ):
# stuff
Is this bad practice? Should I store the result of len() in a variable and use that?