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How do you print in a Go test using the “testing” package?
...sing default formatting, analogous to Println, and records the text in the error log. For tests, the text will be printed only if the test fails or the -test.v flag is set. For benchmarks, the text is always printed to avoid having performance depend on the value of the -test.v flag.
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Core Data: Quickest way to delete all instances of an entity
...istentStoreCoordinator.execute(deleteRequest, with: myContext)
} catch let error as NSError {
// TODO: handle the error
}
Objective-C
NSFetchRequest *request = [[NSFetchRequest alloc] initWithEntityName:@"Car"];
NSBatchDeleteRequest *delete = [[NSBatchDeleteRequest alloc] initWithFetchRequest...
Bootstrap with jQuery Validation Plugin
...uery Validation Plugin, but I'm having a problem where the plugin puts the error messages when I'm using input groups.
15 A...
How do you create a Swift Date object?
...return date
}
}
Which you can use like:
var date = Date.parse("2014-05-20")
var date = Date.from(year: 2014, month: 05, day: 20)
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Design RESTful query API with a long list of query parameters [closed]
...
answered Mar 19 '18 at 17:05
acacio.martinsacacio.martins
1933 bronze badges
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Adding Core Data to existing iPhone project
... core data to an existing iPhone project, but I still get a lot of compile errors:
13 Answers
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Fully custom validation error message with Rails
Using Rails I'm trying to get an error message like "The song field can't be empty" on save. Doing the following:
17 Answer...
CMake output/build directory
..." insourcesubdir)
IF(insource OR insourcesubdir)
MESSAGE(FATAL_ERROR "${MSG}")
ENDIF(insource OR insourcesubdir)
ENDMACRO(MACRO_ENSURE_OUT_OF_SOURCE_BUILD)
MACRO_ENSURE_OUT_OF_SOURCE_BUILD(
"${CMAKE_PROJECT_NAME} requires an out of source build."
)
The above macro comes from a...
Break promise chain and call a function based on the step in the chain where it is broken (rejected)
...say you have something like the following:
stepOne()
.then(stepTwo, handleErrorOne)
.then(stepThree, handleErrorTwo)
.then(null, handleErrorThree);
To better understand what's happening, let's pretend this is synchronous code with try/catch blocks:
try {
try {
try {
var a...
PHP parse/syntax errors; and how to solve them
Everyone runs into syntax errors. Even experienced programmers make typos. For newcomers, it's just part of the learning process. However, it's often easy to interpret error messages such as:
...