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How to save and restore multiple different sessions in Vim?
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If you want to automate the process without using any plugins, you could use Go away and come back from Vim Tips Wiki.
Each time you exit Vim it will save the current session under ~/.vim/sessions and load it back again once Vim is opened. It's also based on you c...
Add custom messages in assert?
.... Since a pointer "is true" if it's non-null, you can do the following without altering the condition:
assert(a == b && "A is not equal to B");
Since assert shows the condition that failed, it will display your message too. If it's not enough, you can write your own myAssert function or m...
Ruby: Easiest Way to Filter Hash Keys?
...is comment) is the selected answer, the original version of this answer is outdated.
I'm adding an update here to help others avoid getting sidetracked by this answer like I did.
As the other answer mentions, Ruby >= 2.5 added the Hash#slice method which was previously only available in Rails.
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How to randomly select an item from a list?
...m.choice(some_list).
Unfortunately though, choice only works for a single output from sequences (such as lists or tuples). Though random.choice(tuple(some_set)) may be an option for getting a single item from a set.
EDIT: Using Secrets
As many have pointed out, if you require more secure pseudor...
Counting the number of elements with the values of x in a vector
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Don't forget about potential floating point issues, especially with table, which coerces numbers to strings.
– hadley
Dec 17 '09 at 18:10
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How do I get the web page contents from a WebView?
...avaScriptEnabled(true);
/* Register a new JavaScript interface called HTMLOUT */
browser.addJavascriptInterface(new MyJavaScriptInterface(), "HTMLOUT");
/* WebViewClient must be set BEFORE calling loadUrl! */
browser.setWebViewClient(new WebViewClient() {
@Override
public void onPageFinish...
Debug code-first Entity Framework migration codes
...ow that EF Code First Migrations is relatively new tool but don't forget about you are still in .NET.
So you can use:
if (System.Diagnostics.Debugger.IsAttached == false)
{
System.Diagnostics.Debugger.Launch();
}
After that you can see your InnerException.
Or you can use try...catch stateme...
What's better to use in PHP, $array[] = $value or array_push($array, $value)?
...rprised if array_push is more efficient when adding multiple values. EDIT: Out of curiosity, did some further testing, and even for a large amount of additions, individual $array[] calls are faster than one big array_push. Interesting.
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How do I assert equality on two classes without an equals method?
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}
}
UPDATE: In assertj v3.13.2 this method is deprecated as pointed out by Woodz in comment. Current recommendation is
public class TestClass {
public void test() {
// do the actual test
assertThat(actualObject)
.usingRecursiveComparison()
.isEqua...
Adding values to a C# array
Probably a really simple one this - I'm starting out with C# and need to add values to an array, for example:
23 Answers
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