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How to unit test an object with database queries
...and this dear friends, is called integration tests
– AA.
Jul 4 '13 at 15:10
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How to drop columns by name in a data frame
...table(text = "
fruit state grade y1980 y1990 y2000
apples Ohio aa 500 100 55
apples Ohio bb 0 0 44
apples Ohio cc 700 0 33
apples Ohio dd 300 50 66
", sep = "", header = TRUE, stringsAsFactors = FALSE)
DF[ , !names(DF) %in% c("grad...
How do I make JavaScript beep?
...le.
function beep() {
var snd = new Audio("data:audio/wav;base64,//uQRAAAAWMSLwUIYAAsYkXgoQwAEaYLWfkWgAI0wWs/ItAAAGDgYtAgAyN+QWaAAihwMWm4G8QQRDiMcCBcH3Cc+CDv/7xA4Tvh9Rz/y8QADBwMWgQAZG/ILNAARQ4GLTcDeIIIhxGOBAuD7hOfBB3/94gcJ3w+o5/5eIAIAAAVwWgQAVQ2ORaIQwEMAJiDg95G4nQL7mQVWI6GwRcfsZAcsKkJvxgxEjzFUg...
best way to preserve numpy arrays on disk
...np.save(f,a)
np.save(f,b)
np.save(f,c)
f.close()
f = file("tmp.bin","rb")
aa = np.load(f)
bb = np.load(f)
cc = np.load(f)
f.close()
To save multiple arrays in one file, you just need to open the file first, and then save or load the arrays in sequence.
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How do I disable a Pylint warning?
...ith the actual strings to use: gist.github.com/m451/965bb613177dd4fa896b815aa0e0e365
– masi
Apr 7 at 11:55
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What is meaning of boolean value returned from an event-handling method in Android
...parent"
android:layout_height="match_parent"
android:background="#0aa"
android:orientation="vertical">
<Button
android:id="@+id/button_click"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:padding="40dp"
...
Draw radius around a point in Google map
...cle({
map: map,
radius: 16093, // 10 miles in metres
fillColor: '#AA0000'
});
circle.bindTo('center', marker, 'position');
You can make it look just like the Google Latitude circle by changing the fillColor, strokeColor, strokeWeight etc (full API).
See more source code and example scree...
How does Stack Overflow generate its SEO-friendly URLs?
...just drop accented characters like åäö but instead deaccentuate them to aao... ^^
– Oskar Duveborn
Nov 16 '09 at 20:48
22
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淘宝应对双\"11\"的技术架构分析 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...而Otter就是跨IDC的数据同步，把数据能及时反映到不同的AA站。
数据同步可能会有冲突，暂时是以那个站点数据为优先，比如说A机房的站点的数据是优先的，不管怎么样，它就覆盖到B的。
对于缓存。
1、注意切分力度，根...
Change timestamps while rebasing git branch
... answered Sep 8 '11 at 18:37
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