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One-liner to take some properties from object in ES 6
...k to solving this as a one-liner is to flip the approach taken: Instead of starting from original object orig, one can start from the keys they want to extract.
Using Array#reduce one can then store each needed key on the empty object which is passed in as the initialValue for said function.
Like so...
Deadly CORS when http://localhost is the origin
...se a domain like lvh.me (which points at 127.0.0.1 just like localhost) or start chrome with the --disable-web-security flag (assuming you're just testing).
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How to replace a set of tokens in a Java String?
...ements.get(matcher.group(1));
builder.append(text.substring(i, matcher.start()));
if (replacement == null)
builder.append(matcher.group(0));
else
builder.append(replacement);
i = matcher.end();
}
builder.append(text.substring(i, text.length()));
return builder.toStrin...
Binding multiple events to a listener (without JQuery)?
While working with browser events, I've started incorporating Safari's touchEvents for mobile devices. I find that addEventListener s are stacking up with conditionals. This project can't use JQuery.
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Config Error: This configuration section cannot be used at this path
...on't remember where I found it on the web, but here is what I did:
Click "Start button"
in the search box, enter "Turn windows features on or off"
in the features window, Click: "Internet Information Services"
Click: "World Wide Web Services"
Click: "Application Development Features"
Check (enable)...
Get data from fs.readFile
...ut using sync versions of methods for one-shot calls before the server has started taking requests. Anyone using Node should really understand why before using it. Definitely before rant-blogging about it.
– Erik Reppen
Mar 2 '15 at 22:42
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How do I erase an element from std::vector by index?
...erase (iterator first, iterator last);
Since std::vec.begin() marks the start of container and if we want to delete the ith element in our vector, we can use:
vec.erase(vec.begin() + index);
If you look closely, vec.begin() is just a pointer to the starting position of our vector and adding th...
Return index of greatest value in an array
...dIndex : bestIndexSoFar, 0);, which can be described as: iterate the array starting from index 0 (2nd parameter), if currentlyTestedValue is higher than the value of the element at the bestIndexSoFar, then return the currentlyTestedIndex to the next iteration as the bestIndexSoFar.
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How to deep watch an array in angularjs?
...tringify may be preferable to angular.toJson as it can handle members that start with '$' and possible other cases as well.
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Gulp command not found after install
...recognize that there's a new executable installed -- so you either need to start a new shell, or type rehash in the current shell.
(This is basically a one-time thing for each command you install globally.)
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