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Regex Named Groups in Java
...atching Strings with Balanced Parentheses slide)
Example:
String:
"TEST 123"
RegExp:
"(?<login>\\w+) (?<id>\\d+)"
Access
matcher.group(1) ==> TEST
matcher.group("login") ==> TEST
matcher.name(1) ==> login
Replace
matcher.replaceAll("aaaaa_$1_sssss_$2____") ==> aaa...
【转】用App Inventor 2实现电子围栏功能 - App应用开发 - 清泛IT社区，为创新赋能！
...示动图
侵删，文章来源：https://makelog.dfrobot.com.cn/user-1229.html
Alternate output format for psql
... using PostgreSQL 8.4 on Ubuntu. I have a table with columns c1 through cN . The columns are wide enough that selecting all columns causes a row of query results to wrap multiple times. Consequently, the output is hard to read.
...
How can I view a git log of just one user's commits?
...commits commited (but not necessarily authored) by Adam, replace %an with %cn. More details about this are in my blog post here: http://dymitruk.com/blog/2012/07/18/filtering-by-author-name/
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Sharing a URL with a query string on Twitter
...intent/tweet?text=optional%20promo%20text%20http://example.com/foo.htm?bar=123&baz=456" target="_blank">Tweet</a>
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Browser statistics on JavaScript disabled [closed]
...sible to allow for non-javascript enabled content for every aspect of a website, plus provide the optimal experience - but the budget is going to sky-rocket for the build.
There's some seriously awesome stuff going down with Javascript which actually makes sites far more accessible! - where do we ...
How can I create a UIColor from a hex string?
...anHexInt:&hexInt];
return hexInt;
}
Usage:
NSString *hexStr1 = @"123ABC";
NSString *hexStr2 = @"#123ABC";
NSString *hexStr3 = @"0x123ABC";
UIColor *color1 = [self getUIColorObjectFromHexString:hexStr1 alpha:.9];
NSLog(@"UIColor: %@", color1);
UIColor *color2 = [self getUIColorObjectFromH...
How to make an Android device vibrate?
...).vibrate(150);
}
}
Kotlin:
// Vibrate for 150 milliseconds
private fun shakeItBaby(context: Context) {
if (Build.VERSION.SDK_INT >= 26) {
(context.getSystemService(VIBRATOR_SERVICE) as Vibrator).vibrate(VibrationEffect.createOneShot(150, VibrationEffect.DEFAULT_AMPLITUDE))
...
Find rows that have the same value on a column in MySQL
...* FROM member WHERE email = (Select email From member Where login_id = john123@hotmail.com)
This will return all records that have john123@hotmail.com as a login_id value.
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Use of *args and **kwargs [duplicate]
... use *args when you're not sure how many arguments might be passed to your function, i.e. it allows you pass an arbitrary number of arguments to your function. For example:
>>> def print_everything(*args):
for count, thing in enumerate(args):
... print( '{0}. {1}'.format(c...