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Is there a difference between YES/NO,TRUE/FALSE and true/false in objective-c?
...tter.
Note that there is a difference if you assign obtuse values to a so-called BOOL variable and test for specific values, so always use them as booleans and only assign them from their #define values.
Importantly, never test booleans using a character comparison -- it's not only risky because ...
How can I tell PyCharm what type a parameter is expected to be?
When it comes to constructors, and assignments, and method calls, the PyCharm IDE is pretty good at analyzing my source code and figuring out what type each variable should be. I like it when it's right, because it gives me good code-completion and parameter info, and it gives me warnings if I try t...
Can the C# interactive window interact with my code?
...an update from the @Botz3000 answer.
The command you want to find is now called "Initialize Interactive with Project"
Also it is worth noting i could not find this command if my C# interactive window was not viewable.
...
Which method performs better: .Any() vs .Count() > 0?
...tion (on ~200.000 records):
con = db.Contacts.
Where(a => a.CompanyId == companyId && a.ContactStatusId <= (int) Const.ContactStatusEnum.Reactivated
&& !a.NewsletterLogs.Any(b => b.NewsletterLogTypeId == (int) Const.NewsletterLogTypeEnum.Unsubscr)
).OrderBy(...
Django Admin - Disable the 'Add' action for a specific model
...in, you get EVERYTHING no matter what.
But if you create a new user group called "General Access" (for example) then you can assign ONLY the CHANGE and DELETE permissions for all of your models.
Then any logged in user that is a member of that group will not have "Create" permission, nothing relat...
scp (secure copy) to ec2 instance without password
...n the wrong order. This works:
scp -i mykey.pem somefile.txt root@my.ec2.id.amazonaws.com:/
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How to show and update echo on same line
...ript was tried on a CentOS system and uses "timedatectl" command which basically prints some detailed time information of your system.
I decided to use that command as its output contains multiple lines and works perfectly for the example below:
#!/bin/bash
while true; do
COMMAND=$(timedatectl)...
How to access a preexisting collection with Mongoose?
... following, either schema-mapped:
new Schema({ url: String, text: String, id: Number},
{ collection : 'question' }); // collection name
or model mapped:
mongoose.model('Question',
new Schema({ url: String, text: String, id: Number}),
'question'); ...
Return rows in random order [duplicate]
...
SELECT * FROM table
ORDER BY NEWID()
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How to hide Bootstrap modal with javascript?
...e browser window, use the browser's console to try
$('#myModal').modal('hide');
If it works (and the modal closes) then you know that your close Javascript is not being sent from the server to the browser correctly.
If it doesn't work then you need to investigate further on the client what is h...