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Generator Expressions vs. List Comprehension
...have a 2TB log file called "hugefile.txt", and you want the content and length for all the lines that start with the word "ENTRY".
So you try starting out by writing a list comprehension:
logfile = open("hugefile.txt","r")
entry_lines = [(line,len(line)) for line in logfile if line.startswith("ENT...
How to trim leading and trailing white spaces of a string?
... pdftk 2.0.2 \n"
result := strings.TrimSpace(test)
fmt.Printf("Length of %q is %d\n", test, len(test))
fmt.Printf("Length of %q is %d\n\n", result, len(result))
test = "\n\r pdftk 2.0.2 \n\r"
result = strings.TrimSpace(test)
fmt.Printf("Length of %q is %d\n", test, len(test...
When should you branch?
...you work with your SCM.
You get:
Better isolation
Better traceability -> you associate tasks with branches, not individual changesets, which makes you free to commit as many times as you want and doesn't impose a limit like "one checkin per task".
Tasks are independent (normally starting from ...
How to open a web server port on EC2 instance
...in "port range" an then "Add rule".
Go to the "Network & Security" -> Security Group settings in the left hand navigation
Find the Security Group that your instance is apart of
Click on Inbound Rules
Use the drop down and add HTTP (port 80)
Click Apply a...
How to disable/enable the sleep mode programmatically in iOS?
...unchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
UIApplication.shared.isIdleTimerDisabled = true
return true
}
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How to detect if app is being built for device or simulator in Swift
...ail/swift-evolution/Week-of-Mon-20160125/…
– jan.vogt
May 22 '16 at 12:19
2
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Passing a function with parameters as a parameter?
... es6 you should be able to use an arrow function
$(edit_link).click(() => changeViewMode(myvar));
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How can I make a weak protocol reference in 'pure' Swift (without @objc)
...
> because most delegates are referencing classes that they do not own I would rewrite this as: most delegators. Otherwise the non owned object becomes the owner
– Victor Jalencas
Feb 1...
What is the difference between 0.0.0.0, 127.0.0.1 and localhost?
... with Jekyll or Vagrant, but I'm guessing that your port forwarding 8080 => 4000 is somehow bound to a particular network adapter, so it isn't in the path when you connect locally to 127.0.0.1
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Start may not be called on a promise-style task. exception is coming
...one:
public void FunctionA()
{
Task.Delay(5000)
.ContinueWith(t =>
{
MessageBox.Show("Waiting Complete");
});
}
This will behave as expected.
We could also leverage C# 5.0's await keyword to add continuations more easily:
public async Task FunctionA()
{
await Tas...