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Gray out image with CSS?
...age" src="something.jpg" />
</div>
css:
#myImage {
opacity: 0.4;
filter: alpha(opacity=40); /* msie */
}
/* or */
#wrapper {
opacity: 0.4;
filter: alpha(opacity=40); /* msie */
background-color: #000;
}
...
Check substring exists in a string in C
...
280
if(strstr(sent, word) != NULL) {
/* ... */
}
Note that strstr returns a pointer to the sta...
What's the simplest way to test whether a number is a power of 2 in C++?
...
190
(n & (n - 1)) == 0 is best. However, note that it will incorrectly return true for n=0, so i...
Specifying rails version to use when creating a new application
I have two versions of rails (2.1.0 and 2.2.2) installed in my computer.
7 Answers
7
...
Memoization in Haskell?
...efficiently the following function in Haskell, for large numbers (n > 108)
8 Answers
...
Current time formatting with Javascript
...ar() - Returns the 4-digit year
getMonth() - Returns a zero-based integer (0-11) representing the month of the year.
getDate() - Returns the day of the month (1-31).
getDay() - Returns the day of the week (0-6). 0 is Sunday, 6 is Saturday.
getHours() - Returns the hour of the day (0-23).
getMinutes...
Ruby 2.0.0p0 IRB warning: “DL is deprecated, please use Fiddle”
...ns of Ruby, removed all of my gems
(including Rails), and installed Ruby 2.0. In other words, a totally clean re-install. Upon starting IRB, I received this message:
...
Compare double to zero using epsilon
...there is a 52-bit mantissa and 11-bit exponent. Let's break it to bits:
1.0000 00000000 00000000 00000000 00000000 00000000 00000000 × 2^0 = 1
The smallest representable number greater than 1:
1.0000 00000000 00000000 00000000 00000000 00000000 00000001 × 2^0 = 1 + 2^-52
Therefore:
epsilon ...
Android Left to Right slide animation
...ndroid:shareInterpolator="false">
<translate android:fromXDelta="-100%" android:toXDelta="0%"
android:fromYDelta="0%" android:toYDelta="0%"
android:duration="700"/>
</set>
This is for right to left animation:
<set xmlns:android="http://schemas.android...
Configure Flask dev server to be visible across the network
...s is Flask specific, but when I run an app in dev mode ( http://localhost:5000 ), I cannot access it from other machines on the network (with http://[dev-host-ip]:5000 ). With Rails in dev mode, for example, it works fine. I couldn't find any docs regarding the Flask dev server configuration. Any i...