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Git: “Not currently on any branch.” Is there an easy way to get back on a branch, while keeping the
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If you have not committed:
git stash
git checkout some-branch
git stash pop
If you have committed and have not changed anything since:
git log --oneline -n1 # this will give you the SHA
git checkout some-branch
git merge ...
How do I loop through or enumerate a JavaScript object?
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"p2": "value2",
"p3": "value3"
};
for (var key in p) {
if (p.hasOwnProperty(key)) {
console.log(key + " -> " + p[key]);
}
}
For-of with Object.keys() alternative:
var p = {
0: "value1",
"b": "value2",
key: "value3"
};
for (var key ...
How can I specify a local gem in my Gemfile?
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Something to watch out for might be Spring. If you are using a local path for your gem you could notice cached versions of your local gem like I did in rails console. If it doesn't seem like your local gem changes are being picked up try spring stop to see if it is i...
Disable a Button
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The boolean value for NO in Swift is false.
button.isEnabled = false
should do it.
Here is the Swift documentation for UIControl's isEnabled property.
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How do I force a DIV block to extend to the bottom of a page even if it has no content?
... to stretch all the way to the bottom of the page but it's only stretching if there's content to display. The reason I want to do this is so the vertical border still appears down the page even if there isn't any content to display.
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Apache Spark: map vs mapPartitions?
What's the difference between an RDD's map and mapPartitions method? And does flatMap behave like map or like mapPartitions ? Thanks.
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How to stop a PowerShell script on the first error?
... after every EXE invocation, check that against the expected exit code and if that test indicates failure, you have to throw to terminate execution of the script e.g. throw "$exe failed with exit code $LastExitCode" where $exe is just the path to the EXE.
– Keith Hill
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Understanding Spring @Autowired usage
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The @Autowired annotation tells Spring where an injection needs to occur. If you put it on a method setMovieFinder it understands (by the prefix set + the @Autowired annotation) that a bean needs to be injected. In the second scan, Spring searches for a bean of type MovieFinder, and if it finds suc...
ViewModel Best Practices
...but I'm curious about some of the conventions (I'm new to the MVC pattern, if it wasn't already obvious).
11 Answers
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What is the correct way to check for string equality in JavaScript?
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always Until you fully understand the differences and implications of using the == and === operators, use the === operator since it will save you from obscure (non-obvious) bugs and WTFs. The "regular" == operator can have very unexpected results due to the type-...