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How to work around the stricter Java 8 Javadoc when using Maven
...lt;table summary=""> trick still works on JDK8. (just tested on jdk1.8.0_201)
– peterh
Feb 17 '19 at 8:29
@peterh I...
How to UPSERT (MERGE, INSERT … ON DUPLICATE UPDATE) in PostgreSQL?
...TE.
Quick explanation.
For usage see the manual - specifically the conflict_action clause in the syntax diagram, and the explanatory text.
Unlike the solutions for 9.4 and older that are given below, this feature works with multiple conflicting rows and it doesn't require exclusive locking or a retr...
Is it safe to remove selected keys from map within a range loop?
...r(1024)
m[k] = GenerateRandStr(1024*1024)
for k2, _ := range m {
delete(m, k2)
break
}
}
}()
osSignals := make(chan os.Signal, 1)
signal.Notify(osSignals, os.Interrupt)
for {
select {
case &...
Is it possible to make a type only movable and not copyable?
...g.
struct Triplet {
one: int,
two: int,
three: int,
_marker: NoCopy
}
You can also do it by having a destructor (via implementing the Drop trait), but using the marker types is preferred if the destructor is doing nothing.
Types now move by default, that is, when you d...
Android custom dropdown/popup menu
...To create a popup menu in android with Java:
Create a layout file activity_main.xml under res/layout directory which contains only one button.
Filename: activity_main.xml
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/to...
Static variables in member functions
...If you are concerned about name conflicts, you could add a prefix such as m_ to indicate the status of i.
– Carl Morris
Oct 13 '14 at 17:37
...
What characters can be used for up/down triangle (arrow without stem) for display in HTML?
...POINTING TRIANGLE
▼ - U+25BC BLACK DOWN-POINTING TRIANGLE
▴ - U+25B4 SMALL BLACK UP-POINTING TRIANGLE
▾ - U+25BE SMALL BLACK DOWN-POINTING TRIANGLE
For ▲ and ▼ use &#x25B2; and &#x25BC; respectively if you cannot include Unicode characters directly (use UTF-8!).
Note that the fo...
Set the location in iPhone Simulator
... where is debug menu in IOS simulator?
– Lucky_girl
Feb 6 '18 at 14:07
1
this works but it...
What's the difference between EscapeUriString and EscapeDataString?
...)*+,;=
For completeness, the unreserved characters are alphanumeric and -._~
Both methods escape characters that are neither reserved nor unreserved.
I disagree with the general notion that EscapeUriString is evil. I think a method that escapes only illegal characters (such as spaces) and not res...
How to get JSON response from http.Get
...outil"
import "encoding/json"
type Tracks struct {
Toptracks Toptracks_info
}
type Toptracks_info struct {
Track []Track_info
Attr Attr_info `json: "@attr"`
}
type Track_info struct {
Name string
Duration string
Listeners string
Mbid string
Url ...