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Return None if Dictionary key is not available
...ldn't work out what I was doing wrong here.
– wobbily_col
Aug 23 '16 at 14:28
@TimPietzcker - can you please explain y...
Javascript Cookie with no expiration date
...
So, basically, on 19th Jan 2038, Chewie will sit in the Millennium Falcon and complain about the cookie policy popup on the galactic map API yet again...
– nickhar
Jul 16 '18 at 22:51
...
Strange out of memory issue while loading an image to a Bitmap object
...te decode method based on your image data source. These methods attempt to allocate memory for the constructed bitmap and therefore can easily result in an OutOfMemory exception. Each type of decode method has additional signatures that let you specify decoding options via the BitmapFactory.Options ...
Linear Regression and group by in R
...
fits <- lmList(response ~ year | state, data=d)
fits
#------------
Call: lmList(formula = response ~ year | state, data = d)
Coefficients:
(Intercept) year
CA -1.34420990 0.17139963
NY 0.00196176 -0.01852429
Degrees of freedom: 20 total; 16 residual
Residual standard error: 0.820...
New features in java 7
...OutputStream(dest))
{
// code
}
Underscores in numeric literals
int one_million = 1_000_000;
Strings in switch
String s = ...
switch(s) {
case "quux":
processQuux(s);
// fall-through
case "foo":
case "bar":
processFooOrBar(s);
break;
case "baz":
processBaz(s);
...
sort object properties and JSON.stringify
...Obj, Object.keys(flattenObject(sortMyObj)).sort());
To do it programmatically with something you can tweak yourself, you need to push the object property names into an array, then sort the array alphabetically and iterate through that array (which will be in the right order) and select each value ...
In log4j, does checking isDebugEnabled before logging improve performance?
...using Log4J in my application for logging. Previously I was using debug call like:
16 Answers
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Convert string with commas to array
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Convert all type of strings
var array = (new Function("return [" + str+ "];")());
var string = "0,1";
var objectstring = '{Name:"Tshirt", CatGroupName:"Clothes", Gender:"male-female"}, {Name:"Dress", CatGroupName:"Clothes", Gend...
Convert string to title case with JavaScript
...return txt.charAt(0).toUpperCase() + txt.substr(1).toLowerCase();});
};
Call it like:
"pascal".toProperCase();
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AgoraRTC 拓展：App Inventor 2 实时语音与视频通话 · App Inventor 2 中文网
...配。
when Screen1.Initialize() {
AgoraRTC1.Initialize()
}
when 按钮_加入.Click() {
AgoraRTC1.JoinChannel("room-1001", 文本输入框1.Text, 0)
}
when AgoraRTC1.JoinedChannel(channel, uid, elapsed) {
标签_状态.Text = join("已加入：", channel, " / UID=", uid)
}
when AgoraRTC1....