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do..end vs curly braces for blocks in Ruby
...ave a coworker who is actively trying to convince me that I should not use do..end and instead use curly braces for defining multiline blocks in Ruby.
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Calling method using JavaScript prototype
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I did not understand what exactly you're trying to do, but normally implementing object-specific behaviour is done along these lines:
function MyClass(name) {
this.name = name;
}
MyClass.prototype.doStuff = function() {
// generic behaviour
}
var myObj = new MyClas...
What's the difference between lapply and do.call?
I'm learning R recently and confused by two function: lapply and do.call . It seems that they're just similar to map function in Lisp. But why are there two functions with such a different name? Why doesn't R just use a function called map ?
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AI助手优化：生成代码块失败是由于大模型单次输出超限导致的，已改进，继续...
...;: "appendToDisplay","params":["text"],"do":[{"set_prop": "Display.Text","value":{"join":[{"get_prop": "Display.Text"},{"get_var": "text"}]}}]},{"procedure": "handle...
Switch statement for greater-than/less-than
... 7.8 6.7 9.5 16.0 15.0 4.9
Test where performed on Windows 7 32bit with the folowing versions: Chrome 21.0.1180.89m, Firefox 15.0, Opera 12.02, MSIE 9.0.8112, Safari 5.1.7. Node was run on a Linux 64bit box because the timer resolution on Node.js for Windows was 10ms instead of ...
How do I write a for loop in bash
...
From this site:
for i in $(seq 1 10);
do
echo $i
done
share
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Coffeescript — How to create a self-initiating anonymous function?
... just use parentheses (e.g. (-> foo)(), you can avoid them by using the do keyword:
do f = -> console.log 'this runs right away'
The most common use of do is capturing variables in a loop. For instance,
for x in [1..3]
do (x) ->
setTimeout (-> console.log x), 1
Without the do...
Emulate a do-while loop in Python?
I need to emulate a do-while loop in a Python program. Unfortunately, the following straightforward code does not work:
16 ...
Function passed as template argument
...solution is something like this instead:
template <typename F>
void doOperation(F f)
{
int temp=0;
f(temp);
std::cout << "Result is " << temp << std::endl;
}
which can now be called as either:
doOperation(add2);
doOperation(add3());
See it live
The problem with t...
MQTT物联网协议完全实践指南 · App Inventor 2 中文网
...例：
// 设置不同QoS级别发布消息
when Button_PublishQoS0.Click
do
call UrsPahoMqttClient1.Publish "sensor/temperature", "25.6", 0
when Button_PublishQoS1.Click
do
call UrsPahoMqttClient1.Publish "control/light", "ON", 1
when Button_PublishQoS2.Click
do
call UrsPahoMqttClient...