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Better way to get type of a Javascript variable?
...[object Array]' : 'array',
'[object Date]' : 'date',
'[object Error]' : 'error'
},
TOSTRING = Object.prototype.toString;
function type(o) {
return TYPES[typeof o] || TYPES[TOSTRING.call(o)] || (o ? 'object' : 'null');
};
This captures many of the primitives provided by javascri...
How to write log to file
....O_RDWR | os.O_CREATE | os.O_APPEND, 0666)
if err != nil {
log.Fatalf("error opening file: %v", err)
}
defer f.Close()
log.SetOutput(f)
log.Println("This is a test log entry")
Based on the Go docs, os.Open() can't work for log.SetOutput, because it opens the file "for reading:"
func Open
...
What is the difference between `raise “foo”` and `raise Exception.new(“foo”)`?
...
Technically, the first raises a RuntimeError with the message set to "foo", and the second raises an Exception with the message set to "foo".
Practically, there is a significant difference between when you would want to use the former and when you want to use the...
CreateProcess error=206, The filename or extension is too long when running main() method
I have this error in eclipse helios:
26 Answers
26
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What is an optional value in Swift?
...can be nil
If you try to set a non-optional variable to nil, you'll get an error.
var red: String = "Red"
red = nil // error: nil cannot be assigned to type 'String'
Another way of looking at optionals is as a complement to normal Swift variables. They are a counterpart to a variable which is guara...
jQuery Validate - require at least one field in a group to be filled
...te div instead of after all every field.
put in form validate script
showErrors: function(errorMap, errorList){
$("#form_error").html("Please fill out at least 1 field before submitting.");
this.defaultShowErrors();
},
add this somewhere in the page
<div class...
Coredata Error “data: ”
... let arrayOfData = try context.fetch(request)
} catch {
// Handle the error!
}
Hope , it will help you . :)
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Where are my postgres *.conf files?
...------------------------------------------------------------------------
# ERROR REPORTING AND LOGGING
#------------------------------------------------------------------------------
# - Where to Log -
#log_destination = 'stderr' # Valid values are combinations of
# stderr,...
Getting “Lock wait timeout exceeded; try restarting transaction” even though I'm not using a transac
...ime, so you have to wait some process to be idle. If so you could get this error. Am I right?
– zhuguowei
Aug 4 '16 at 9:36
6
...
how to edit .csproj file
... my .csproj file using .NET framework 4.0 MSBUILD.EXE file I am getting an error "lable01" not found in the current context of "website01.csproj"
...