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Convert a binary NodeJS Buffer to JavaScript ArrayBuffer
...rayBuffer(buf.length);
var view = new Uint8Array(ab);
for (var i = 0; i < buf.length; ++i) {
view[i] = buf[i];
}
return ab;
}
From ArrayBuffer to Buffer:
function toBuffer(ab) {
var buf = Buffer.alloc(ab.byteLength);
var view = new Uint8Array(ab);
for (var i...
Should private helper methods be static if they can be static
... blong
2,65566 gold badges3232 silver badges9090 bronze badges
answered Feb 11 '09 at 21:33
Esko LuontolaEsko Luontola
70.3...
Why does [5,6,8,7][1,2] = 8 in JavaScript?
...
gsamaras
64.5k3131 gold badges140140 silver badges240240 bronze badges
answered Sep 14 '11 at 18:17
Lightness Races in OrbitLightness...
Using {} in a case statement. Why?
...
Macke
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answered Nov 17 '13 at 13:25
RotemRotem
19.2k66 gold badge...
Pandas aggregate count distinct
...
How about either of:
>>> df
date duration user_id
0 2013-04-01 30 0001
1 2013-04-01 15 0001
2 2013-04-01 20 0002
3 2013-04-02 15 0002
4 2013-04-02 30 0002
>>> df.groupby("date").agg({"duration": np.sum, "user_id...
Comma separator for numbers in R?
...
answered Oct 1 '10 at 11:43
Joris MeysJoris Meys
95k2626 gold badges196196 silver badges254254 bronze badges
...
Pry: show me the stack
...play the callstack (with show-stack), and so on:
see here:
Frame number: 0/64
From: /Users/johnmair/ruby/rails_projects/personal_site/app/controllers/posts_controller.rb @ line 7 PostsController#index:
5: def index
6: @posts = Post.all
=> 7: binding.pry
8: end
[1] pry(#<P...
Fragment transaction animation: slide in and slide out
...ation XML files in res > anim
enter_from_left.xml
<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android"
android:shareInterpolator="false">
<translate
android:fromXDelta="-100%p" android:toXDelta="0%"
android:fro...
How to pass a single object[] to a params object[]
...
100
A simple typecast will ensure the compiler knows what you mean in this case.
Foo((object)new o...
Replace values in list using Python [duplicate]
...
207
Build a new list with a list comprehension:
new_items = [x if x % 2 else None for x in items]
...