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std::find，std::find_if使用小结 - C/C++ - 清泛网 - 专注C/C++及内核技术
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int _tmain(int argc, TCHAR* argv[], TCHAR* envp[])
{
std::vector<std::string> vec;
vec.push_back("one");
vec.push_back("two");
vec.push_back("three");
//查找
std::vector<std::string>::iterator it = std::find(vec.begin(), vec.end(), "two");
if (it != vec.end())
printf("find:%s\n...
How using try catch for exception handling is best practice
...e
try
{
...
}
catch(Exception ex)
{
throw new ApplicationException(string.Format("I cannot write the file {0} to {1}", fileName, directoryName), ex);
}
There is a lot to do with exception handling (Custom Exceptions) but thoses rules I try to keep in mind are enough for the simple applicat...
What are the best practices for SQLite on Android?
... new AtomicInteger(0);
public DBSQLiteOpenHelper(Context context, String name, int version, DatabaseManager databaseManager) {
super(context, name, null, version);
this.databaseManager = databaseManager;
}
public void addConnection(){
cou...
What's the difference between process.cwd() vs __dirname?
... js doc
process.cwd()
cwd is a method of global object process, returns a string value which is the current working directory of the Node.js process.
As per node js doc
__dirname
The directory name of current script as a string value. __dirname is not actually a global but rather local to each mo...
How do I view the SQL generated by the Entity Framework?
... select x;
var sql = ((System.Data.Objects.ObjectQuery)query).ToTraceString();
or in EF6:
var sql = ((System.Data.Entity.Core.Objects.ObjectQuery)query)
.ToTraceString();
That will give you the SQL that was generated.
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Can I mix MySQL APIs in PHP?
...tell me today that they've no problem/errors when mixing mysql_real_escape_string() with what the rest of their code being PDO. Is there something I didn't get here in my time with working with these different APIs? Am I the ignorant one here? This being for the "now deleted" question stackoverflow....
Formatting numbers (decimal places, thousands separators, etc) with CSS
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You can use Number.prototype.toLocaleString(). It can also format for other number formats, e.g. latin, arabic, etc.
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number/toLocaleString
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In JavaScript, why is “0” equal to false, but when tested by 'if' it is not false by itself?
...the comparison is performed.
When you do: if ("0") console.log("ha"), the string value is being tested. Any non-empty string is true, while an empty string is false.
Equal (==)
If the two operands are not of the same type, JavaScript converts the operands then applies strict comparison. If...
What is the syntax rule for having trailing commas in tuple definitions?
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That's a simple answer.
a = ("s") is a string
and
a = ("s",) is a tuple with one element.
Python needs an additional comma in case of one element tuple to, differentiate between string and tuple.
For example try this on python console:
a = ("s")
a = a + (1,...
How to convert a String to CharSequence?
How to convert String to CharSequence in Java?
5 Answers
5
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