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Read a variable in bash with a default value
...
$1 becomes ${1:-some_default_string}
– ThorSummoner
Oct 24 '16 at 22:58
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show 6 more comments...
How to change the type of a field?
...ase, it looks like you're trying to change the $type from 1 (double) to 2 (string).
So simply load the document from the DB, perform the cast (new String(x)) and then save the document again.
If you need to do this programmatically and entirely from the shell, you can use the find(...).forEach(fun...
Getting “Skipping JaCoCo execution due to missing execution data file” upon executing JaCoCo
...rtifactId>
<configuration>
<argLine>@{argLine} -your -extra -arguments</argLine>
</configuration>
</plugin>
Note the @{argLine} that's added to -your -extra -arguments.
Thanks Slava Semushin for noticing the change and reporting in the comment.
jacoco-ma...
Constructor overload in TypeScript
...e(birthday),
gender,
);
}
constructor(
public fullName: string,
public age: number,
public gender: 'M' | 'F',
) {}
toString(): string {
return `Hello, my name is ${this.fullName} and I'm a ${this.age}yo ${this.gender}`;
}
}
interface PersonData {
first: strin...
Setting log level of message at runtime in slf4j
...mentation.
*/
public static void log(Logger logger, Level level, String txt) {
if (logger != null && level != null) {
switch (level) {
case TRACE:
logger.trace(txt);
break;
case DEBUG:
logge...
Kotlin secondary constructor
...1. (solves your case) Define a factory method next to your class
fun C(s: String) = C(s.length)
class C(a: Int) { ... }
usage:
val c1 = C(1) // constructor
val c2 = C("str") // factory method
Technique 2. (may also be useful) Define default values for parameters
class C(name: String? = null) ...
Ruby: How to post a file via HTTP as multipart/form-data?
...do it with Net::HTTP. A multipart form post is just a carefully-formatted string with some extra headers. It seems like every Ruby programmer who needs to do multipart posts ends up writing their own little library for it, which makes me wonder why this functionality isn't built-in. Maybe it is.....
Iterating through a JSON object
...he list contains two dicts. The dicts contain various key/value pairs, all strings. When you do json_object[0], you're asking for the first dict in the list. When you iterate over that, with for song in json_object[0]:, you iterate over the keys of the dict. Because that's what you get when you iter...
Change string color with NSAttributedString?
I have a slider for a survey that display the following strings based on the value of the slider: "Very Bad, Bad, Okay, Good, Very Good".
...
Getting Checkbox Value in ASP.NET MVC 4
...
If formCollection is used, then the string returned for the checkbox as the result is: "true,false". How do you parse this? Is Replace() the only option?
– Jo Smo
Jul 4 '15 at 21:23
...