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How do I clear only a few specific objects from the workspace?
...("^tmp", ls())])
thereby removing all objects whose name begins with the string "tmp".
Edit: Following Gsee's comment, making use of the pattern argument:
rm(list = ls(pattern = "^tmp"))
Edit: Answering Rafael comment, one way to retain only a subset of objects is to name the data you want to ...
Add a property to a JavaScript object using a variable as the name?
...bstitution, variables, etc.
Bracket notation is open ended. It uses a string but you can produce the string using any legal js code. You may specify the string as literal (though in this case dot notation would read easier) or use a variable or calculate in some way.
So, these all set the myO...
Programmatically obtain the Android API level of a device?
...
For API Level >= 4 you can use Build.VERSION.SDK_INT
private String getAndroidVersion(int sdk) {
switch (sdk) {
case 1: return "(Android 1.0)";
case 2: return "Petit Four" + "(Android 1.1)";
case 3: return "Cupcake" ...
Get item in the list in Scala?
... code into an invocation of a method named apply on that variable. So greetStrings(i) gets transformed into greetStrings.apply(i). Thus accessing an element of an array in Scala is simply a method call like any other. This principle is not restricted to arrays: any application of an object to some a...
Save ArrayList to SharedPreferences
... ArrayList with custom objects. Each custom object contains a variety of strings and numbers. I need the array to stick around even if the user leaves the activity and then wants to come back at a later time, however I don't need the array available after the application has been closed completely...
How can I decrease the size of Ratingbar?
...
But there is a useless extra padding on the right! How to remove that?!
– Dr.jacky
Jan 15 '18 at 6:37
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Dynamic cell width of UICollectionView depending on label width
...iewLayout sizeForItemAtIndexPath:(NSIndexPath *)indexPath{
return [(NSString*)[arrayOfStats objectAtIndex:indexPath.row] sizeWithAttributes:NULL];
}
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Checkbox for nullable boolean
...ble fashion (display: inline-block; width:100px;)
In the model (I'm using string, string for the dictionary definition as a pedagogical example. You can use bool?, string)
public IEnumerable<SelectListItem> Sexsli { get; set; }
SexDict = new Dictionary<string, string>()
...
Web API Put Request generates an Http 405 Method Not Allowed error
...issue for me:
public async Task<IHttpActionResult> SetAmountOnEntry(string id, [FromBody]int amount)
However ASP.NET would infer it correctly if complex object was used in the method parameter:
public async Task<IHttpActionResult> UpdateEntry(string id, MyEntry entry)
...
SQL Server Regular expressions in T-SQL
...t it gives you the basics.
(From Books Online)
Wildcard Meaning
% Any string of zero or more characters.
_ Any single character.
[ ] Any single character within the specified range
(for example, [a-f]) or set (for example, [abcdef]).
[^] Any single character not within the specified ran...