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Difference between == and ===
... You can also override isEqual: in Swift: override func isEqual(_ object: Any?) -> Bool {}
– Thomas Elliot
Sep 16 '17 at 1:33
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How to rename a table in SQL Server?
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To rename a table in SQL Server, use the sp_rename command:
exec sp_rename 'schema.old_table_name', 'new_table_name'
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git submodule tracking latest
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@DC_ I agree with "this answer" (since I wrote it). The "following a branch" feature is meant to update a submodule to the latest commit of a branch. Once that is done, you will still have to add and commit the new submodule sta...
write a shell script to ssh to a remote machine and execute commands
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This work for me.
Syntax : ssh -i pemfile.pem user_name@ip_address 'command_1 ; command 2; command 3'
#! /bin/bash
echo "########### connecting to server and run commands in sequence ###########"
ssh -i ~/.ssh/ec2_instance.pem ubuntu@ip_address 'touch a.txt; touch b.txt; s...
How can I delete multiple lines in vi?
...You can delete multiple(range) lines if you know the line numbers:
:[start_line_no],[end_line_no]d
Note: d stands for delete
where,
start_line_no is the beginning line no you want to delete and
end_line_no is the ending line no you want to delete.
The lines between the start and end, includin...
When should I use semicolons in SQL Server?
...ECT 1/0 AS CauseAnException
COMMIT
END TRY
BEGIN CATCH
SELECT ERROR_MESSAGE()
THROW
END CATCH
BEGIN TRY
BEGIN TRAN
SELECT 1/0 AS CauseAnException;
COMMIT
END TRY
BEGIN CATCH
SELECT ERROR_MESSAGE();
THROW
END CATCH
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How to implement classic sorting algorithms in modern C++?
The std::sort algorithm (and its cousins std::partial_sort and std::nth_element ) from the C++ Standard Library is in most implementations a complicated and hybrid amalgamation of more elementary sorting algorithms , such as selection sort, insertion sort, quick sort, merge sort, or heap sort....
What is the ellipsis (…) for in this method signature?
...hRecipientJids(jid1, jid2);
msgBuilder2.withRecipientJids(jid1, jid2, jid78_a, someOtherJid);
See more here:
http://java.sun.com/j2se/1.5.0/docs/guide/language/varargs.html
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Is there an equivalent for var_dump (PHP) in Javascript?
...ckoverflow.com/a/11315561/1403755 which is essentially a duplicate of print_r for php
– TorranceScott
Aug 14 '14 at 21:50
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Bootstrap 3 modal vertical position center
...ox try the following css solution as well: tweaks.klickagent.ch/#30.05.2014_TwitterBootstrapCenterModal