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What are the performance characteristics of sqlite with very large database files? [closed]
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So I did some tests with sqlite for very large files, and came to some conclusions (at least for my specific application).
The tests involve a single sqlite file with either a single table, or multiple tables. Each table had about 8 columns, almost all integers, and 4 indices.
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Getting the first character of a string with $str[0]
I want to get the first letter of a string and I've noticed that $str[0] works great. I am just not sure whether this is 'good practice', as that notation is generally used with arrays. This feature doesn't seem to be very well documented so I'm turning to you guys to tell me if it's all right –...
Getting a File's MD5 Checksum in Java
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try (InputStream is = Files.newInputStream(Paths.get("file.zip"))) {
String md5 = org.apache.commons.codec.digest.DigestUtils.md5Hex(is);
}
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What is the use of the %n format specifier in C?
... Oh my - this is a character-based version of computing the pixel size of string in a given font!
– user3458
Aug 4 '10 at 12:41
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How to efficiently concatenate strings in go
In Go, a string is a primitive type, which means it is read-only, and every manipulation of it will create a new string.
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Input widths on Bootstrap 3
... way to do it with the build in functionality without using grid or adding extra css. Grids do not work well if you are dealing with help-block elements that need to go beyond a short input for example but they are 'build-in'. If that is an issue I recommend using extra css classes which you can f...
Convert seconds to HH-MM-SS with JavaScript?
How can I convert seconds to an HH-MM-SS string using JavaScript?
34 Answers
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How to programmatically determine the current checked out Git branch [duplicate]
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A challenge for all bash string artists out there: surely there must be a nice way of doing this in less than three variable assignments? :-D
– conny
Jun 23 '10 at 16:32
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How to create dictionary and add key–value pairs dynamically?
..." + lastName] = "some value";
Note that keys (property names) are always strings, and non-string values will be coerced to a string when used as a key. E.g. a Date object gets converted to its string representation:
dict[new Date] = "today's value";
console.log(dict);
// => {
// "Sat Nov...
How to assign a Git SHA1's to a file without Git?
...having Git installed. Note that "\0" is the NULL-byte, not a two-character string.
For example, the hash of an empty file:
sha1("blob 0\0") = "e69de29bb2d1d6434b8b29ae775ad8c2e48c5391"
$ touch empty
$ git hash-object empty
e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
Another example:
sha1("blob 7\...