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How can I disable ARC for a single file in a project?
...e 4, in build phases, and compile sources, there are actually two columns. One for the file name, and another for the compile flags for that one file. This is where you enter this specific compiler flag.
– casademora
Jul 26 '11 at 17:58
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Sequelize.js delete query?
...
For anyone using Sequelize version 3 and above, use:
Model.destroy({
where: {
// criteria
}
})
Sequelize Documentation - Sequelize Tutorial
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What are static factory methods?
...s to provide a "spare" connection, failing with an exception if there are none.
public class DbConnection{
private static final int MAX_CONNS = 100;
private static int totalConnections = 0;
private static Set<DbConnection> availableConnections = new HashSet<DbConnection>();
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How to compare objects by multiple fields
...a of using a single Comparator. I don't think this answer is wrong, but anyone reading it should definitely check Steve Kuo answer below.
– Felipe Leão
Nov 13 '14 at 12:15
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Renaming a virtualenv folder without breaking it
...e | grep -v "^Binary file" | grep -i venv-name. In fact, I noticed that in one of my Django instances, a lot of the packages had the "path to Python sh-bang" in them.
– Kevin
May 23 '16 at 14:01
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Why is there no SortedList in Java?
... lot like the TreeSet.
2. Sort your list with Collections.sort()
As mentioned above, sorting of Lists is a manipulation of the data structure. So for situations where you need "one source of truth" that will be sorted in a variety of ways then sorting it manually is the way to go.
You can sort yo...
Group by multiple columns in dplyr, using string vector input
...= names(data)[-3]
library(dplyr)
df1 <- data %>%
group_by_at(vars(one_of(columns))) %>%
summarize(Value = mean(value))
#compare plyr for reference
df2 <- plyr::ddply(data, columns, plyr::summarize, value=mean(value))
table(df1 == df2, useNA = 'ifany')
## TRUE
## 27
The output ...
How to stop Visual Studio from “always” checking out solution files?
...operty = AnyValue
EndGlobalSection
I found that Enterprise Library added one of these. I removed it, checked in the solution, closed then re-opened it, and no more automatic check out.
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How to find out what character key is pressed?
... only single characters are entered, check key.length === 1, or that it is one of the characters you expect.
Mozilla Docs
Supported Browsers
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How can I print a circular structure in a JSON-like format?
... In the following case, a value is discarded:
var a = {b:1}
var o = {};
o.one = a;
o.two = a;
// one and two point to the same object, but two is discarded:
JSON.stringify(o, ...);
But the concept stands: Use a custom replacer, and keep track of the parsed object values.
As a utility function wr...