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How do I encode and decode a base64 string?
...rogram
{
static void Main(string[] args)
{
Test1();
Test2();
}
static void Test1()
{
string textEncoded = System.Text.Encoding.UTF8.EncodeBase64("test1...");
System.Diagnostics.Debug.Assert(textEncoded == "d...
Templated check for the existence of a class member function?
...{
int helloworld() { return 0; }
};
struct Generic {};
// SFINAE test
template <typename T>
class has_helloworld
{
typedef char one;
struct two { char x[2]; };
template <typename C> static one test( decltype(&C::helloworld) ) ;
template <typename C> s...
pandas DataFrame: replace nan values with average of columns
... perspective it is wrong to first replace NA and then split into train and test... You MUST first split into train and test, then replace NA by mean on train and then apply this stateful preprocessing model to test, see the answer involving sklearn below!
– Fabian Werner
...
Javascript regex returning true.. then false.. then true.. etc [duplicate]
...egExp. In JavaScript, global regexen have state: you call them (with exec, test etc.) the first time, you get the first match in a given string. Call them again and you get the next match, and so on until you get no match and it resets to the start of the next string. You can also write regex.lastIn...
What is the easiest/best/most correct way to iterate through the characters of a string in Java?
...l here. Actually I tried out the suggestions above and took the time.
My test was fairly simple: create a StringBuilder with about a million characters, convert it to a String, and traverse each of them with charAt() / after converting to a char array / with a CharacterIterator a thousand times (o...
In JavaScript, why is “0” equal to false, but when tested by 'if' it is not false by itself?
...ormed.
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 either operand is a n...
TCPClient TCP客户端扩展：连接TCP服务器进行文本消息通信 · App Inventor 2 中文网
...eight: 24px; margin-bottom: 4px; background: url(/static/images/feedback.svg) 50% / 100% auto no-repeat; } 文档反馈 切换 目录 在线 客服 扫码添加客服咨询 我要 分享 ...
Bamboo Vs. Hudson(a.k.a. Jenkins) vs Any other CI systems [closed]
...ess.
Deploy artifacts to servers (i.e. deploy the war if all the unit tests pass.)
Bamboo 2.7 supports Build Stages, which allow you to break up your build into a Unit Test Stage and a Deploy Stage. Only if the Unit Test Stage succeeds, the build will move on to the Deploy Stage. In Bamboo 3....
Select columns from result set of stored procedure
...
To achieve this, first you create a #test_table like below:
create table #test_table(
col1 int,
col2 int,
.
.
.
col80 int
)
Now execute procedure and put value in #test_table:
insert into #test_table
EXEC MyStoredProc 'param1', 'param2'
...
Generate a Hash from string in Javascript
...
I did a few tests on jsperf (jsperf.com/hashing-strings) and the bitwise function is actually more slow than the number based function.
– skerit
Jun 29 '12 at 21:23
...