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Set transparent background using ImageMagick and commandline prompt
...mageMagick 6.6.9-7 on Ubuntu 12.04.
What worked for me was the following:
convert test.png -transparent white transparent.png
That changed all the white in the test.png to transparent.
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How do I convert an object to an array?
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Single-dimensional arrays
For converting single-dimension arrays, you can cast using (array) or there's get_object_vars, which Benoit mentioned in
his answer.
// Cast to an array
$array = (array) $object;
// get_object_vars
$array = get_object_vars(...
Do I have to guard against SQL injection if I used a dropdown?
... can validate that the POST value contains an integer, and use an array to convert that to text when needed. E.g:
<?php
// No, you don't need to specify the numbers in the array but as we're using them I always find having them visually there helpful.
$sizes = array(0 => 'All', 1 => 'Large...
iOS: Convert UTC NSDate to local Timezone
How do I convert a UTC NSDate to local timezone NSDate in Objective C or/and Swift?
13 Answers
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Check existence of directory and create if doesn't exist
...utput_dir)) {dir.create(output_dir)}
Example:
dateDIR <- as.character(Sys.Date())
outputDIR <- file.path(outD, dateDIR)
if (!dir.exists(outputDIR)) {dir.create(outputDIR)}
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How does having a dynamic variable affect performance?
..., int, etc? As I recall you mentioned in there how/why using dynamic with Convert.ToXXX causes the compiler to fire up. I'm sure I'm butchering the details, but hopefully you know what I'm talking about.
– Adam Rackis
Sep 20 '11 at 15:49
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Converting Mercurial folder to a Git repository
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Windows: TortoiseHG Hg-Git extension
Hg-Git can be used to convert a Mercurial repository to Git. You can use a local repository or a remote repository accessed via SSH, HTTP or HTTPS.
Example of local repositories conversion.
Install Hg-Git.
On Windows, TortoiseHg comes with Hg...
Convert LocalDate to LocalDateTime or java.sql.Timestamp
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JodaTime
To convert JodaTime's org.joda.time.LocalDate to java.sql.Timestamp, just do
Timestamp timestamp = new Timestamp(localDate.toDateTimeAtStartOfDay().getMillis());
To convert JodaTime's org.joda.time.LocalDateTime to java.sql.Tim...
How to convert a string to utf-8 in Python
...rom the query string, the encoding that Python returns is ASCII. How can I convert the plain string to utf-8?
10 Answers
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Get last element of Stream/List in a one-liner
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And you can easily convert a stream to an iterable: Iterables.getLast(() -> data.careas.stream().filter(c -> c.bbox.orientationHorizontal).iterator())
– shmosel
Feb 12 at 20:55
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