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.htaccess redirect all pages to new domain
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Most efficient way to create a zero filled JavaScript array?
... are medium fast for small arrays
solution based on Array.apply (P) throws error for big arrays
function P(n) {
return Array.apply(null, Array(n)).map(Number.prototype.valueOf,0);
}
try {
P(1000000);
} catch(e) {
console.error(e.message);
}
Code and example
Below code presents s...
Finding the average of a list
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And it produces a nicer error if you accidentally pass in an empty list statistics.StatisticsError: mean requires at least one data point instead of a more cryptic ZeroDivisionError: division by zero for the sum(x) / len(x) solution.
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What is the --save option for npm install?
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Looks like npm will not fire any error if you put a none exist option, like --save-xxxxxx. It just ignore it and the default behavior --save-prod will be in affect. Maybe --save comes from some old npm version.
– leon
M...
psql: FATAL: database “” does not exist
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In my case i wrote $ createdb -h localhost to solve the error could not connect to database postgres: could not connect to server. After that i may connect to postgresql console via psql -h localhost.
– ExiRe
Jan 9 '14 at 14:23
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Java: random long number in 0
...odify this to perform nextLong:
long nextLong(Random rng, long n) {
// error checking and 2^x checking removed for simplicity.
long bits, val;
do {
bits = (rng.nextLong() << 1) >>> 1;
val = bits % n;
} while (bits-val+(n-1) < 0L);
return val;
}
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MySQL date format DD/MM/YYYY select query?
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John CondeJohn Conde
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3
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Average of 3 long integers
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answered May 30 '14 at 8:05
Patrick HofmanPatrick Hofman
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How to install gem from GitHub source?
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ERROR: While executing gem ... (NoMethodError) undefined method 'build' for Gem::Package:Module Sounds very cool but I won't be looking into it further. Just wanted to post that it didn't work for me in case someone else...
GIF Animated 扩展：可点击透明背景动画GIF播放器 · App Inventor 2 中文网
...罩。
颜色：数字类型，透明颜色的颜色值
提示：尝试多种颜色效果，如白色、黑色、黄色等
GetFrameCount 获取帧数(文件路径) {:.number .read-only}
获取指定GIF文件的帧数。
文件路径：文本类型，GIF文件...