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Declaring javascript object method in constructor function vs. in prototype [duplicate]
... advantage of the first approach (initializing methods in the constructor) is that you can take advantage of closures by making use of local variables defined within the constructor in your methods. These variables are not directly accessible outside the constructor function so are effectively "priv...
Create directories using make file
...iles and i want to create directories using makefile. My project directory is like this
9 Answers
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SqlDataAdapter vs SqlDataReader
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SqlDataReader:
Holds the connection open until you are finished (don't forget to close it!).
Can typically only be iterated over once
Is not as useful for updating back to the database
On the other hand, it:
Only has one record in memory at a time rather than an entire result set ...
Finding what branch a Git commit came from
Is there a way to find out what branch a commit comes from given its SHA-1 hash value?
14 Answers
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How to check if a string contains an element from a list in Python
I have something like this:
6 Answers
6
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Open file dialog box in JavaScript
I need a solution to display open file dialog in HTML while clicking a div . The open file dialog box must open when the div is clicked.
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What should I use Android AccountManager for?
I've seen AccountManager in the Android SDK and that it is used for storing account information. Thus, I cannot find any general discussion of what it is intended for. Does anyone know of any helpful discussions of what the intention behind AccountManager is and what it buys you? Any opinions of wha...
Compare two data.frames to find the rows in data.frame 1 that are not present in data.frame 2
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This doesn't answer your question directly, but it will give you the elements that are in common. This can be done with Paul Murrell's package compare:
library(compare)
a1 <- data.frame(a = 1:5, b = letters[1:5])
a2 <- d...
Qt 5.1.1: Application failed to start because platform plugin “windows” is missing
...rk my question as a duplicate. Do not forget that many similar questions existed when I asked this one (see e.g. the list below). However, none of these answers solved my problem . After a long search I found a comment which had been ignored by all users pointing to the missing lib. Now, many mon...
How to pop an alert message box using PHP?
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You could use Javascript:
// This is in the PHP file and sends a Javascript alert to the client
$message = "wrong answer";
echo "<script type='text/javascript'>alert('$message');</script>";
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