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Why is a div with “display: table-cell;” not affected by margin?
...ss="table">
<div class="row">
<div class="cell">123</div>
<div class="cell">456</div>
<div class="cell">879</div>
</div>
</div>
CSS
.table {display:table;border-collapse:separate;border-spacing:5px;}
.row {di...
Python argparse mutual exclusive group
... answered Dec 28 '14 at 10:38
Oz123Oz123
21.4k2222 gold badges9494 silver badges163163 bronze badges
...
Simple Pivot Table to Count Unique Values
...s two different columns. Using the original example, I didn't have:
ABC 123
ABC 123
ABC 123
DEF 456
DEF 567
DEF 456
DEF 456
and want it to appear as:
ABC 1
DEF 2
But something more like:
ABC 123
ABC 123
ABC 123
ABC 456
DEF 123
DEF 456
D...
Difference between matches() and find() in Java Regex
...
Pattern p = Pattern.compile("\\d\\d\\d");
Matcher m = p.matcher("a123b");
System.out.println(m.find());
System.out.println(m.matches());
p = Pattern.compile("^\\d\\d\\d$");
m = p.matcher("123");
System.out.println(m.find());
System.out.println(m.matches());
}
/* ou...
fstream默认不支持中文路径和输出整数带逗号的解决办法 - C/C++ - 清泛网 -...
...tfile )
{
cout << "Failed to create file!";
return ;
}
int i = 123456789;
outfile << "i = " << i << "/n"; //输出带逗号
outfile.close();
setlocale( LC_ALL, "C" ); //恢复全局locale，如果不恢复，可能导致cout无法输出中文
}
创建文件成功...
How do I parse a string to a float or int?
...temptible lie
False True So false it becomes true
"123.456" True Decimal
" -127 " True Spaces trimmed
"\t\n12\r\n" True whitespace ignored
"NaN" True Not a number
"NaNanananaBATMAN" False ...
Liquibase lock - reasons?
...he liquibase-scripts the lock was held.
<changeSet author="user" id="123">
<preConditions onFail="CONTINUE">
<not><sequenceExists sequenceName="SEQUENCE_NAME_SEQ" /></not>
</preConditions>
<createSequence sequenceName="SEQUENCE_NAME_SEQ"/&g...
How can I parse a string with a comma thousand separator to a number?
...1), '.');
return parseFloat(normalized);
}
const corpus = {
'1.123': {
expected: 1.123,
locale: 'en-US'
},
'1,123': {
expected: 1123,
locale: 'en-US'
},
'2.123': {
expected: 2123,
locale: 'fr-FR'
},
'2,123': {
expected: 2.123,
loc...
What exactly is Type Coercion in Javascript?
...tically (on-the-fly) converts a variable from one datatype to another
Ex: 123 + "4" generally raises an error but in Javascript due to type coercion, it results in 1234 a string
if(23 == "23"){
console.log(" this line is inside the loop and is executed ");
}
In the above code, because of typ...
Javascript and regex: split string and keep the separator
...
test('splitKeep', function () {
// String
deepEqual("1231451".splitKeep('1'), ["1", "231", "451"]);
deepEqual("123145".splitKeep('1', true), ["123", "145"]);
deepEqual("1231451".splitKeep('1', true), ["123", "145", "1"]);
deepEqual("hello man how are you...