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How to read from stdin line by line in Node
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edited Mar 20 '15 at 14:45
Gavin
62466 silver badges2020 bronze badges
answered Nov 20 '13...
Postgres unique constraint vs index
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Let's check uniqueness, just in case.
test=# insert into master values (0, 0);
INSERT 0 1
test=# insert into master values (0, 1);
ERROR: duplicate key value violates unique constraint "master_con_id_key"
DETAIL: Key (con_id)=(0) already exists.
test=# insert into master values (1, 0);
ERROR: ...
Why does Go have a “goto” statement
...mple, in the math/gamma.go file, the goto statement is used:
for x < 0 {
if x > -1e-09 {
goto small
}
z = z / x
x = x + 1
}
for x < 2 {
if x < 1e-09 {
goto small
}
z = z / x
x = x + 1
}
if x == 2 {
return z
}
x = x - 2
p ...
Aligning rotated xticklabels with their respective xticks
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209
You can set the horizontal alignment of ticklabels, see the example below. If you imagine a rec...
When to use std::forward to forward arguments?
C++0x shows an example of using std::forward :
3 Answers
3
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How to get the first word of a sentence in PHP?
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$myvalue = 'Test me more';
$arr = explode(' ',trim($myvalue));
echo $arr[0]; // will print Test
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MySQL: What's the difference between float and double?
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106
They both represent floating point numbers. A FLOAT is for single-precision, while a DOUBLE is ...
HTML anchor link - href and onclick both?
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130
Just return true instead?
The return value from the onClick code is what determines whether the...
ActiveRecord, has_many :through, and Polymorphic Associations
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edited Dec 5 '11 at 9:09
answered Nov 5 '09 at 23:53
Em...
How do I negate a condition in PowerShell?
...oo?
– Roman Starkov
Dec 7 '12 at 18:04
9
No, -not is the only logical operator that comes with an...