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In javascript, is an empty string always false as a boolean?
...this behavior:
ToBoolean
The result is false if the argument is the empty String (its length is zero);
otherwise the result is true
Quote taken from http://www.ecma-international.org/publications/files/ECMA-ST/Ecma-262.pdf
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Kotlin: how to pass a function as parameter to another?
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Use :: to signify a function reference, and then:
fun foo(m: String, bar: (m: String) -> Unit) {
bar(m)
}
// my function to pass into the other
fun buz(m: String) {
println("another message: $m")
}
// someone passing buz into foo
fun something() {
foo("hi", ::buz)
}
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“Server” vs “Data Source” in connection string
... SqlLocalDb installed to work locally. Good, but I can see two connection strings typically and both works:
4 Answers
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Android read text raw resource file
...redReader reader = new BufferedReader(new InputStreamReader(inputStream));
String line = reader.readLine();
while (line != null) { ... }
Don't forget that readLine() skips the new-lines!
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Application auto build versioning
...o linker (go tool link) has an option to set the value of an uninitialised string variable:
-X importpath.name=value
Set the value of the string variable in importpath named name to
value.
Note that before Go 1.5 this option took two separate arguments.
Now it takes one argume...
Getting the application's directory from a WPF application
...
You can also use the first argument of the command line arguments:
String exePath = System.Environment.GetCommandLineArgs()[0]
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C# DropDownList with a Dictionary as DataSource
...eField of DropDownList using "Key" and "Value" texts :
Dictionary<string, string> list = new Dictionary<string, string>();
list.Add("item 1", "Item 1");
list.Add("item 2", "Item 2");
list.Add("item 3", "Item 3");
list.Add("item 4", "Item 4");
ddl.DataSource = l...
Practical example where Tuple can be used in .Net 4.0?
...ement a currency exchange mapping:
var forex = new Dictionary<Tuple<string, string>, decimal>();
forex.Add(Tuple.Create("USD", "EUR"), 0.74850m); // 1 USD = 0.74850 EUR
forex.Add(Tuple.Create("USD", "GBP"), 0.64128m);
forex.Add(Tuple.Create("EUR", "USD"), 1.33635m);
forex.Add(Tuple.Crea...
How to check for Is not Null And Is not Empty string in SQL server?
... Server WHERE condition whether the column is not null and not the empty string ( '' )?
7 Answers
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JavaScript seconds to time string with format hh:mm:ss
...onvert a duration of time, i.e., number of seconds to colon-separated time string (hh:mm:ss)
43 Answers
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