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Are PHP Variables passed by value or by reference?
... reference using an '&'.
Assigned by value/reference example:
$var1 = "test";
$var2 = $var1;
$var2 = "new test";
$var3 = &$var2;
$var3 = "final test";
print ("var1: $var1, var2: $var2, var3: $var3);
output:
var1: test, var2: final test, var3: final test
Passed by value/reference example:...
Check string for palindrome
...the end is done.
public static void main(String[] args) {
for (String testStr : Arrays.asList("testset", "none", "andna", "haah", "habh", "haaah")) {
System.out.println("testing " + testStr + " is palindrome=" + isPalindrome(testStr));
}
}
public static boolean isPalindrome(String ...
Best way to do multi-row insert in Oracle?
...his isn't a one off, its worth it.
Create Table
SQL> create table ldr_test (id number(10) primary key, description varchar2(20));
Table created.
SQL>
Create CSV
oracle-2% cat ldr_test.csv
1,Apple
2,Orange
3,Pear
oracle-2%
Create Loader Control File
oracle-2% cat ldr_test.ctl
load dat...
/bin/sh: pushd: not found
...
But setting SHELL will not work in this case, see test1 in my answer, stackoverflow.com/questions/5193048/bin-sh-pushd-not-found/….
– hlovdal
Mar 4 '11 at 12:30
...
Passing variable arguments to another function that accepts a variable argument list
...emplates:
#include <stdio.h>
template<typename... Args> void test(const char * f, Args... args) {
printf(f, args...);
}
int main()
{
int a = 2;
test("%s\n", "test");
test("%s %d %d %p\n", "second test", 2, a, &a);
}
At the very least, it works with g++.
...
Express-js wildcard routing to cover everything under and including a path
...vior in the version currently referenced. It's unclear to me whether the latest version of that module keeps the behavior, but for now this answer stands.
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How to check whether a string contains a substring in Ruby
...clude on it's own is not ideal as it can throw a NoMethodError if nil test = nil test.include?("test") NoMethodError: undefined method `include?' for nil:NilClass should always convert the value being included to the expected value:- test.to_s.include?("test")
–...
How can I have ruby logger log output to stdout as well as file?
...
For those who like it simple:
log = Logger.new("| tee test.log") # note the pipe ( '|' )
log.info "hi" # will log to both STDOUT and test.log
source
Or print the message in the Logger formatter:
log = Logger.new("test.log")
log.formatter = proc do |severity, datetime, progna...
How can I include raw JSON in an object using Jackson?
...a Java object when the object is (de)serialized using Jackson. In order to test this functionality, I wrote the following test:
...
Function overloading in Javascript - Best practices
...bject can hold anything.
function foo(a, b, opts) {
// ...
if (opts['test']) { } //if test param exists, do something..
}
foo(1, 2, {"method":"add"});
foo(3, 4, {"test":"equals", "bar":"tree"});
Then you can handle it anyway you want in your method. [Switch, if-else, etc.]
...