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When to use a key/value store such as Redis instead/along side of a SQL database?
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102
I can't seem to figure out when it's time to use it in an application.
I would recommend y...
VBA - how to conditionally skip a for loop iteration
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answered Dec 30 '11 at 15:02
BrianBrian
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How does the bitwise complement operator (~ tilde) work?
...ple, here's the representation of -2 in two's complement: (8 bits)
1111 1110
The way you get this is by taking the binary representation of a number, taking its complement (inverting all the bits) and adding one. Two starts as 0000 0010, and by inverting the bits we get 1111 1101. Adding one gets u...
How to use phpexcel to read data and insert into database?
...age());
}
// Get worksheet dimensions
$sheet = $objPHPExcel->getSheet(0);
$highestRow = $sheet->getHighestRow();
$highestColumn = $sheet->getHighestColumn();
// Loop through each row of the worksheet in turn
for ($row = 1; $row <= $highestRow; $row++){
// Read a row of data i...
Parse a URI String into Name-Value Collection
...air.indexOf("=");
query_pairs.put(URLDecoder.decode(pair.substring(0, idx), "UTF-8"), URLDecoder.decode(pair.substring(idx + 1), "UTF-8"));
}
return query_pairs;
}
You can access the returned Map using <map>.get("client_id"), with the URL given in your question this would retu...
Difference between git pull and git pull --rebase
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mvpmvp
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14
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How does the C# compiler detect COM types?
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answered Jul 7 '09 at 17:22
Michael PetrottaMichael Petrotta
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When to use valueChangeListener or f:ajax listener?
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edited Jul 7 '15 at 20:40
answered Aug 9 '12 at 12:02
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Listing all permutations of a string/integer
...more elaborate (and since it is tagged c #), from http://radio.weblogs.com/0111551/stories/2002/10/14/permutations.html :
Rather lengthy, but I decided to copy it anyway, so the post is not dependent on the original.
The function takes a string of characters, and writes down every possible permutat...
Get loop counter/index using for…of syntax in JavaScript
...tion (value, i) {
console.log('%d: %s', i, value);
});
// Outputs:
// 0: 123
// 1: 15
// 2: 187
// 3: 32
Or ES6’s Array.prototype.entries, which now has support across current browser versions:
for (const [i, value] of myArray.entries()) {
console.log('%d: %s', i, value);
}
For itera...