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SQL Case Sensitive String Compare
How do you compare strings so that the comparison is true only if the cases of each of the strings are equal as well. For example:
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Checking if a string can be converted to float in Python
I've got some Python code that runs through a list of strings and converts them to integers or floating point numbers if possible. Doing this for integers is pretty easy
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How do I declare an array of weak references in Swift?
...lace(objects.map { WeakObject(object: $0) })
}
}
Usage
var alice: NSString? = "Alice"
var bob: NSString? = "Bob"
var cathline: NSString? = "Cathline"
var persons = WeakObjectSet<NSString>()
persons.addObject(bob!)
print(persons.allObjects) // [Bob]
persons.addObject(bob!)
print(person...
What is the difference between a strongly typed language and a statically typed language?
...amic) type error.
For example, Lua, a dynamically typed language, has a string type, a number type, and a Boolean type, among others. In Lua every value belongs to exactly one type, but this is not a requirement for all dynamically typed languages. In Lua, it is permissible to concatenate two s...
Different bash prompt for different vi editing mode?
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Bash 4.4 / Readline 7.0 will add support for user-settable mode strings.
You can try the beta versions, but they seem a bit buggy at the moment. They also don't yet support specifying where in the prompt you want the mode indicator to occur (which I think is the killer feature).
If you ...
How to set Sqlite3 to be case insensitive when string comparing?
I want to select records from sqlite3 database by string matching. But if I use '=' in the where clause, I found that sqlite3 is case sensitive. Can anyone tell me how to use string comparing case-insensitive?
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Generate URL in HTML helper
...rn ((Controller)htmlHelper.ViewContext.Controller).Url;
const string itemKey = "HtmlHelper_UrlHelper";
if (htmlHelper.ViewContext.HttpContext.Items[itemKey] == null)
htmlHelper.ViewContext.HttpContext.Items[itemKey] = new UrlHelper(htmlHelper.ViewContext.Req...
How do I load a file from resource folder?
...csv", YourCallingClass.class);
Path path = Paths.get(url.toURI());
List<String> lines = Files.readAllLines(path, StandardCharsets.UTF_8);
// java.io.InputStream
InputStream inputStream = ClassLoaderUtil.getResourceAsStream("test.csv", YourCallingClass.class);
InputStreamReader streamReader...
What's the difference between array_merge and array + array?
...rged);
This outputs:
plus sign merge
array(4) {
["a"]=>
string(3) "one"
["b"]=>
string(3) "two"
["c"]=>
string(5) "three"
[3]=>
string(12) "number three"
}
array_merge function merge
array(4) {
["a"]=>
string(6) "fourth"
[...
Escape a string for a sed replace pattern
In my bash script I have an external (received from user) string, which I should use in sed pattern.
14 Answers
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