大约有 30,000 项符合查询结果（耗时：0.0682秒） [XML]
find vs find_by vs where
... When query value out of range, find_by will rescue ::RangeError from where(*args) and return nil.
– fangxing
May 6 '19 at 8:39
...
node.js execute system command synchronously
...024),
result = "",
fp = lib.popen(cmd, 'r');
if (!fp) throw new Error('execSync error: '+cmd);
while(lib.fgets(buffer, 1024, fp)) {
result += buffer.readCString();
};
lib.pclose(fp);
return result;
}
console.log(execSync('echo $HOME'));
...
SSL Connection / Connection Reset with IISExpress
...hose could conflict with the one generated by IIS Express. I had this same error (ERR_SSL_PROTOCOL_ERROR), and it took me many hours to finally figure it out after trying out many many "solutions". My mistake was that I had created my own 'localhost' certificate and there were two of them. I had to ...
Reactjs: Unexpected token '
...as writing a simple component to display
li tag and came across this error:
17 Answers
...
adb shell command to make Android package uninstall dialog appear
...
Active
Oldest
Votes
...
How to checkout in Git by date?
... the command line and why do you say it's not working? Are you getting an error message?
– Andy
Dec 15 '11 at 13:32
8
...
How do I know which version of Javascript I'm using?
...ut I'm wondering which version of Javascript is being used in the most popular browsers.
6 Answers
...
MSSQL Error 'The underlying provider failed on Open'
...
I had this error and found a few solutions:
Looking at your connection string, it looks valid. I found this blog post, the problem here is that they were using Integrated Security. If you are running on IIS, your IIS user needs acces...
IndentationError: unindent does not match any outer indentation level
...hitespace > Convert Spaces to Tabs and you will avoid a Python's Syntax Error Headache!
– loretoparisi
Mar 11 '15 at 14:24
1
...
How to use NSJSONSerialization
...ame":"Bbb"}]
This might give you a clear picture of how to handle it:
NSError *e = nil;
NSArray *jsonArray = [NSJSONSerialization JSONObjectWithData: data options: NSJSONReadingMutableContainers error: &e];
if (!jsonArray) {
NSLog(@"Error parsing JSON: %@", e);
} else {
for(NSDictionary...