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What are bitwise operators?
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It is worth noting that the single-bit truth tables listed as other answers work on only one or two input bits at a time. What happens when you use integers, such as:
int x = 5 & 6;
The answer lies in the binary expansion of each input:
5 = 0 0 0 0 0 1 0 1
&am...
What's better at freeing memory with PHP: unset() or $var = null
...set() for most of my coding, but I've recently looked through a few respectable classes found off the net that use $var = null instead.
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How to make join queries using Sequelize on Node.js
...sted, but what it does is basically just aliasing all columns of the users table to make sure they are placed into the correct model when returned and not mixed up with the posts model
Other than that you'll notice that it does a JOIN instead of selecting from two tables, but the result should be t...
What are the pros and cons of both Jade and EJS for Node.js templating? [closed]
... HTML structure gets complicated, your code will look horrible (especially tables). Sometimes, I don't even know what level I am at
table
thead
tr
td
a
img
tr
td
tbody
tr
td
Recently, I made a switch to EJS and I am happy with it so far. It is v...
Proper Linq where clauses
...amp;&
c.CustomerID == 2 &&
c.CustomerID == 3
select c customer table in linqpad
against my Customer table it output the same sql query
-- Region Parameters
DECLARE @p0 Int = 1
DECLARE @p1 Int = 2
DECLARE @p2 Int = 3
-- EndRegion
SELECT [t0].[CustomerID], [t0].[CustomerName]
FROM [Cust...
What is compiler, linker, loader?
...==============+
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|---> Executable (.Exe/a.out) (com:cc <file.name> )
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V
Executable file(a.out)
C preprocessor :-
C preprocessing is the first step in the compilation. It handles:
#define...
How to retrieve inserted id after inserting row in SQLite using Python?
...to retrieve inserted id after inserting row in SQLite using Python? I have table like this:
2 Answers
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Switching a DIV background image with jQuery
I am making an expand/collapse call rates table for the company I work for. I currently have a table with a button under it to expand it, the button says "Expand". It is functional except I need the button to change to "Collapse" when it is clicked and then of course back to "Expand" when it is clic...
What is the difference between Trap and Interrupt?
..., I/O ports, etc). These are asynchronous (i.e. they don't happen at predictable places in the user code) or "passive" since the interrupt handler has to wait for them to happen eventually.
You can also see a trap as a kind of CPU-internal interrupt since the handler for trap handler looks like an ...
Why does Java's hashCode() in String use 31 as a multiplier?
...t so many Java implementations choose such constants.
See section 9.2 Hash Tables (page 522) of Data Structures and Algorithms in Java.
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