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Extract a substring according to a pattern
... sub to replace it with a colon first. For example, if the separator were _ then string <- sub("_", ":", string)
c(read.dcf(textConnection(string)))
## [1] "E001" "E002" "E003"
7) separate
7a) Using tidyr::separate we create a data frame with two columns, one for the part before the colon and o...
C#: Assign same value to multiple variables in single statement
...ssorTest
{
public AccessorTest(int value = default(int))
{
_Value = value;
}
private int _Value;
public int Value
{
get
{
Console.WriteLine("AccessorTest.Value.get {0}", _Value);
return _Value;
}
set
{
...
How to parse float with two decimal places in javascript?
I have the following code. I would like to have it such that if price_result equals an integer, let's say 10, then I would like to add two decimal places. So 10 would be 10.00.
Or if it equals 10.6 would be 10.60. Not sure how to do this.
...
Can JSON start with “[”?
...ct, dictionary, hash table,
keyed list, or associative array.
An ordered list of values. In most languages, this is realized as an
array, vector, list, or sequence.
It then goes on to describe the two structures as:
Note that the starting and ending characters are curly bracke...
Have the same README both in Markdown and reStructuredText
... on GitHub. For this I have written my README using the Markdown syntax in order to have it nicely formatted on GitHub.
8 A...
Get list from pandas DataFrame column headers
...
Importantly, this preserves the column order.
– WindChimes
Jan 25 '16 at 13:07
|
show 6 more comments
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How to do an instanceof check with Scala(Test)
... tiger shouldBe a [Tiger] is the current syntax scalatest.org/at_a_glance/FlatSpec
– jhegedus
May 16 '17 at 4:06
2
...
Concatenate text files with Windows command line, dropping leading lines
...ch means it's listed at the end of the files in the loaction (alphabetical order), then windows seems to concatenate twice! I ended up using a filename of 1filename.csv to not have the problem. I guess concatting into a different folder should work also...
– SebK
...
Can I combine :nth-child() or :nth-of-type() with an arbitrary selector?
... by the rest of the selector.
This also implies that there is no notion of order among simple selectors within each individual compound selector1, which means for example the following two selectors are equivalent:
table.myClass tr.row:nth-child(odd)
table.myClass tr:nth-child(odd).row
Translated t...
How to export all collections in MongoDB?
...
For lazy people, use mongodump, it's faster:
mongodump -d <database_name> -o <directory_backup>
And to "restore/import" it (from directory_backup/dump/):
mongorestore -d <database_name> <directory_backup>
This way, you don't need to deal with all collections individ...