大约有 15,561 项符合查询结果（耗时：0.0252秒） [XML]
Is it safe to resolve a promise multiple times?
...eed a promise can be only resolved once, another tries will do nothing (no error, no warning, no then invocation).
I decided to work it around like this:
getUsers(users => showThem(users));
getUsers(callback){
callback(getCachedUsers())
api.getUsers().then(users => callback(users))
...
Have nginx access_log and error_log log to STDOUT and STDERR of master process
...
Edit: it seems nginx now supports error_log stderr; as mentioned in Anon's answer.
You can send the logs to /dev/stdout. In nginx.conf:
daemon off;
error_log /dev/stdout info;
http {
access_log /dev/stdout;
...
}
edit: May need to run ln -sf /proc/se...
How to find NSDocumentDirectory in Swift?
...it expects the type NSSearchPathDirectory instead. Certainly not a helpful error message.
But as to the reasons:
First, you are confusing the argument names and types. Take a look at the function definition:
func NSSearchPathForDirectoriesInDomains(
directory: NSSearchPathDirectory,
domai...
Getting an “ambiguous redirect” error
...n be pretty obtuse sometimes.
The following commands all return different error messages for basically the same error:
$ echo hello >
bash: syntax error near unexpected token `newline`
$ echo hello > ${NONEXISTENT}
bash: ${NONEXISTENT}: ambiguous redirect
$ echo hello > "${NONEXISTENT}"...
jQuery: Can I call delay() between addClass() and such?
...te a new queue item to do your removing of the class:
$("#div").addClass("error").delay(1000).queue(function(next){
$(this).removeClass("error");
next();
});
Or using the dequeue method:
$("#div").addClass("error").delay(1000).queue(function(){
$(this).removeClass("error").dequeue();...
What is “assert” in JavaScript?
...'re using some library that provides one. The usual meaning is to throw an error if the expression passed into the function is false; this is part of the general concept of assertion checking. Usually assertions (as they're called) are used only in "testing" or "debug" builds and stripped out of pro...
mongorestore error: Don't know what to do with the dump file [closed]
...owing path c:\hw1-1\dump (This contains the BSON files) I'm getting this error:
7 Answers
...
Eclipse compilation error: The hierarchy of the type 'Class name' is inconsistent
... software written in Java and tried to compile it using Eclipse.
I got the error: " The hierarchy of the type 'Class name' is inconsistent " in some files.
What causes these errors and how do I fix them?
...
Web Application Problems (web.config errors) HTTP 500.19 with IIS7.5 and ASP.NET v2
... we try to run out ASP.NET Web Application on IIS 7.5 we get the following error...
23 Answers
...
Meaning of “[: too many arguments” error from if [] (square brackets)
... resource spelling out the meaning of and fix for the following BASH shell error, so I'm posting what I found after researching it.
...