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How do I check if an object has a specific property in JavaScript?
...me other answers present techniques that are more broad (work with arrays, strings etc.)
– Danubian Sailor
Aug 27 '14 at 12:22
...
Calling closure assigned to object property directly
...t;__invoke();
Of course that won't work if the callback is an array or a string (which can also be valid callbacks in PHP) - just for closures and other objects with __invoke behavior.
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Get Enum from Description attribute [duplicate]
...static class EnumEx
{
public static T GetValueFromDescription<T>(string description) where T : Enum
{
foreach(var field in typeof(T).GetFields())
{
if (Attribute.GetCustomAttribute(field,
typeof(DescriptionAttribute)) is DescriptionAttribute attr...
What is the best way to dump entire objects to a log in C#?
... ObjectDumper is now available. It also provides an extension method DumpToString and Dump to Object class. Handy.
– IsmailS
Jun 17 '15 at 9:43
2
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How do I add a linker or compile flag in a CMake file?
...ILE_FLAGS)
if(TEMP STREQUAL "TEMP-NOTFOUND")
SET(TEMP "") # Set to empty string
else()
SET(TEMP "${TEMP} ") # A space to cleanly separate from existing content
endif()
# Append our values
SET(TEMP "${TEMP}${GCC_COVERAGE_COMPILE_FLAGS}" )
set_target_properties(${THE_TARGET} PROPERTIES COMPILE_FLA...
Shell脚本编程30分钟入门 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...引号。单双引号的区别跟PHP类似。
单引号
str='this is a string'
单引号字符串的限制：
单引号里的任何字符都会原样输出，单引号字符串中的变量是无效的
单引号字串中不能出现单引号（对单引号使用转义符后也不行）
...
Differences between fork and exec
..." functions to create the child process
execvp (argv[0], const_cast<char**>(argv));
} else { // This is the Parent Process
//Continue executing parent process
}
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rsync: how can I configure it to create target directory on server?
...ync /public/.keep /public/newfolder/ && rsync" \ it does create an extra file but you can remove later.
– Fabiano Soriani
Oct 7 '15 at 19:42
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Why do some functions have underscores “__” before and after the function name?
...dler, ThreadableMixin):
def _worker(self):
self.res = self.render_string("template.html",
title = _("Title"),
data = self.application.db.query("select ... where object_id=%s", self.object_id)
)
...
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How to delete an object by id with entity framework
...Customer(int id)
{
using (var context = new Context())
{
const string query = "DELETE FROM [dbo].[Customers] WHERE [id]={0}";
var rows = context.Database.ExecuteSqlCommand(query,id);
// rows >= 1 - count of deleted rows,
// rows = 0 - nothing to delete.
}
}
...