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How do I return the response from an asynchronous call?
...nt, return result;, is executed before the function you passed as success callback was even called.
Here is an analogy which hopefully makes the difference between synchronous and asynchronous flow clearer:
Synchronous
Imagine you make a phone call to a friend and ask him to look something up for yo...
Get PHP class property by string
How do I get a property in a PHP based on a string? I'll call it magic . So what is magic ?
12 Answers
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Sequelize.js: how to use migrations and sync
...rst migration"
In your case, the most reliable way is to do it almost manually. I would suggest to use sequelize-cli tool. The syntax is rather plain:
sequelize init
...
sequelize model:create --name User --attributes first_name:string,last_name:string,bio:text
This will create both model AND mi...
Why can't I declare static methods in an interface?
...don't know which implementing class is the correct definition.
Java could allow the latter; and in fact, starting in Java 8, it does!
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General suggestions for debugging in R
...orite debugging routine:
When an error occurs, the first thing that I usually do is look at the stack trace by calling traceback(): that shows you where the error occurred, which is especially useful if you have several nested functions.
Next I will set options(error=recover); this immediately sw...
What does the Reflect object do in JavaScript?
...ble:
ES6 spec, Reflection
MDN Reflect (including details and examples to all of its methods)
Original answer (for (historic) understanding and extra examples):
The Reflection proposal seems to have progressed to the Draft ECMAScript 6 Specification. This document currently outlines the Reflect...
Double negation (!!) in javascript - what is the purpose? [duplicate]
...ue
null to true
+0 to true
-0 to true
'' to true
NaN to true
false to true
All other expressions to false
Then the other ! negates it again. A concise cast to boolean, exactly equivalent to ToBoolean simply because ! is defined as its negation. It’s unnecessary here, though, because it’s only ...
How does git merge after cherry-pick work?
...mit as a patch (and fail, for the exact reason you described), Git is generally able to handle this scenario.
When merging, Git will try to combine the snapshots of both HEAD commits into a new snapshot. If a portion of code or a file is identical in both snapshots (i.e. because a commit was alread...
How to tell Eclipse Workspace?
...d it shows the name of current workspace.
I tried to confirm
"Actually, this shows the last workspace that was closed, not the current workspace. If you are opening and closing several, this is not dependable."
and I am not able to reproduce it. Each time I get the currently loaded worksp...
Changing font size and direction of axes text in ggplot2
...r ggplots here. You can see a full list of parameters you can modify (basically, all of them) using ?theme.
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