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How do I immediately execute an anonymous function in PHP?
...ing "()". Works just like JS thanks to uniform variable evaluation order.
https://3v4l.org/06EL3
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How to query nested objects?
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
Difference of keywords 'typename' and 'class' in templates?
... there is a difference in general.
– Hassan Syed
Jan 7 '10 at 22:06
could those two parameters the container ...
Check if a string contains a number
...
use str.isalpha()
Ref: https://docs.python.org/2/library/stdtypes.html#str.isalpha
Return true if all characters in the string are alphabetic and there
is at least one character, false otherwise.
...
Detect if value is number in MySQL
...l1 * 1) = col1
It doesn't work for non-standard numbers like
1e4
1.2e5
123. (trailing decimal)
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How to unset a JavaScript variable?
...ions to delete as with any language, if you care enough you should read:
https://developer.mozilla.org/en/Core_JavaScript_1.5_Reference/Operators/Special_Operators/delete_Operator
http://www.ecma-international.org/publications/files/ECMA-ST/ECMA-262.pdf
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C/C++中的段错误（Segmentation fault） - C/C++ - 清泛网 - 专注C/C++及内核技术
...printf的源代码的这里
声明部分：
int pos =0 ,cnt_printed_chars =0 ,i ;
unsigned char *chptr ;
va_list ap ;
%s格式控制部分：
case 's':
chptr =va_arg (ap ,unsigned char *);
i =0 ;
while (chptr [i ])
...
MySQL Conditional Insert
...nsert, try:
INSERT INTO x_table(instance, user, item)
SELECT 919191, 123, 456
FROM dual
WHERE NOT EXISTS (SELECT * FROM x_table
WHERE user = 123
AND item = 456)
In this, dual is a table with one row only (found orig...
Checking if an Android application is running in the background
...ries {
...
google()
jcenter()
maven { url 'https://maven.google.com' }
}
}
You can read more about Lifecycle related architecture components here - https://developer.android.com/topic/libraries/architecture/lifecycle
...