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How do you check if a certain index exists in a table?
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AdaTheDevAdaTheDev
123k2424 gold badges179179 silver badges181181 bronze badges
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Reset C int array to zero : the fastest way?
... /OX /arch:AVX /Oi /Ot)
int:
memset: 99
fill: 97
ZERO: 98
intrin_ZERO: 90
long long:
memset: 285
fill: 286
ZERO: 285
intrin_ZERO: 188
gcc 5.1.0 (optimization flags: -O3 -march=native -mtune=native -mavx):
int:
memset: 268
fill: 268
ZERO: ...
Simple regular expression for a decimal with a precision of 2
...e
deci_num_checker = re.compile(r"""^[0-9]+(\.[0-9]{1,2})?$""")
valid = ["123.12", "2", "56754", "92929292929292.12", "0.21", "3.1"]
invalid = ["12.1232", "2.23332", "e666.76"]
assert len([deci_num_checker.match(x) != None for x in valid]) == len(valid)
assert [deci_num_checker.match(x) == None fo...
How do I replace a git submodule with another repo?
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123
If the location (URL) of the submodule has changed, then you can simply:
Modify your .gitmod...
Is there a minlength validation attribute in HTML5?
...answered Apr 24 '12 at 8:24
user123444555621user123444555621
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Getting the count of unique values in a column in bash
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Adam MatanAdam Matan
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网站伪静态Rewrite重写中文路径时乱码 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...，会发现IE实际查询的网址是“http://zh.wikipedia.org/wiki/%E6%98%A5%E8%8A%82”。也就是说，IE自动将“春节”编码成了“%E6%98%A5%E8%8A%82”。
我们知道，“春”和“节”的utf-8编码分别是“E6 98 A5”和“E8 8A 82”，因此，“%E6%98%A5%E8%8A%82...
Java switch statement multiple cases
...gic, we can do:
switch (var) {
case (96):
case (97):
case (98):
case (99):
case (100):
//your logic, opposite to what you put in default.
break;
default:
//your logic for 1 to 95. we enter default if nothing above is met.
break;
}
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How do I use a custom Serializer with Jackson?
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StaxManStaxMan
98.6k2828 gold badges184184 silver badges223223 bronze badges
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How can I build multiple submit buttons django form?
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98
You can use self.data in the clean_email method to access the POST data before validation. It s...