大约有 40,000 项符合查询结果（耗时：0.0251秒） [XML]
Rails 4 LIKE query - ActiveRecord adds quotes
...
When using '?' in this way in rails it is converted to a parameterized query. The data within the parameter isn't sanitized (the %) but it is impossible to change context out of the query and turn it into processed SQL statements.
– David Hoelzer
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How to quickly clear a JavaScript Object?
...arObjectValues = (objToClear) => {
Object.keys(objToClear).forEach((param) => {
if ( (objToClear[param]).toString() === "[object Object]" ) {
clearObjectValues(objToClear[param]);
} else {
objToClear[param] = undefined;
}
})
return ob...
How to initialize log4j properly?
...ender name="console" class="org.apache.log4j.ConsoleAppender">
<param name="Target" value="System.out"/>
<layout class="org.apache.log4j.PatternLayout">
<param name="ConversionPattern" value="%-5p %c{1} - %m%n"/>
</layout>
</appender>
<...
Use of class definitions inside a method in Java
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public void run() {
classWithMethodToFire.doSomething( parameter );
}
});
If you needed to create a bunch of these and do something with them, you might change this to
//within some method
class myFirstRunnableClass implements Runnable {
public void run() ...
Reading Excel files from C#
...me exists in the Schema Table
/// </summary>
/// <param name="sheetName">Sheet name to be verified</param>
/// <param name="dtSchema">schema table </param>
private static bool CheckIfSheetNameExists(string sheetName, DataTable dtSchema)
...
NUnit's Assert.Equals throws exception “Assert.Equals should not be used for assertions”
...ere is no mistake by calling this function.
/// </summary>
/// <param name="a"></param>
/// <param name="b"></param>
[EditorBrowsable(EditorBrowsableState.Never)]
public static new bool Equals(object a, object b)
{
// TODO: This should probably be InvalidOper...
Using Jasmine to spy on a function without an object
...vate implementation for the spy to work. const result = FooFunctions.foo(params) // spy reports call const result = foo(params) // spy reports no call
– Richard Matsen
Jul 11 '17 at 23:28
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Programmatically find the number of cores on a machine
...ode
#ifdef _WIN32
#include <windows.h>
#elif MACOS
#include <sys/param.h>
#include <sys/sysctl.h>
#else
#include <unistd.h>
#endif
int getNumCores() {
#ifdef WIN32
SYSTEM_INFO sysinfo;
GetSystemInfo(&sysinfo);
return sysinfo.dwNumberOfProcessors;
#elif MACOS...
How to print a query string with parameter values when using Hibernate
...nts as they are executed
org.hibernate.type - set to trace to log all JDBC parameters
So a log4j configuration could look like:
# logs the SQL statements
log4j.logger.org.hibernate.SQL=debug
# Logs the JDBC parameters passed to a query
log4j.logger.org.hibernate.type=trace
The first is equiv...
Why doesn't ruby support method overloading?
...s the right answer. The accepted answer oversimplifies. C# DOES have named parameters and optional parameters and still implements overloading, so it's not as simple as "def method(a, b = true) won't work, therefore method overloading is impossible." It's not; it's just difficult. I found THIS answe...