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Can someone explain this 'double negative' trick? [duplicate]
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@Grinn : user113716 did not list all. He forgot -0 . I do not mean a unary minus with a zero, but the result of that which is a seperate value. You can create it, for instance, by assigning -0 to a variable.
– Marco de Wit
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How to make PDF file downloadable in HTML link?
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header("Content-Length: " . filesize($file));
flush(); // this doesn't really matter.
$fp = fopen($file, "r");
while (!feof($fp))
{
echo fread($fp, 65536);
flush(); // this is essential for large downloads
}
fclose($fp);
PS: and obviously run some sanity checks on the "file" variable t...
MySQL high CPU usage [closed]
...query cache and innodb_buffer_pool_size (if you're using innodb tables) as all of these memory allocations can have an affect on query performance which can cause MySQL to eat up CPU.
You'll also probably want to give the following a read over as they contain some good information.
How MySQL Uses...
How to avoid scientific notation for large numbers in JavaScript?
... and browsers based on it (Chrome, the new Edge [v79+], Brave) and Firefox all have support; Safari's support is underway.
Here's how you'd use BigInt for it: BigInt(n).toString()
Example:
const n = 13523563246234613317632;
console.log("toFixed (wrong): " + n.toFixed());
console.log("BigInt...
How can I parse a YAML file in Python
...d without relying on C headers is PyYaml (documentation), which can be installed via pip install pyyaml:
#!/usr/bin/env python
import yaml
with open("example.yaml", 'r') as stream:
try:
print(yaml.safe_load(stream))
except yaml.YAMLError as exc:
print(exc)
And that's it. A...
What exactly is an “open generic type” in .NET? [duplicate]
...er a type argument or a generic type defined with unknown type arguments:
All types can be classified as either open types or closed types. An open type is a type that involves type parameters. More specifically:
A type parameter defines an open type.
An array type is an open type if and only if i...
How to get diff working like git-diff?
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Install colordiff from your apt/yum/pacman repository and use it.
– iBug
Jul 29 '18 at 8:14
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Transpose list of lists
...npacked argument lists: Given a sequence of arguments args, f(*args) will call f such that each element in args is a separate positional argument of f.
Coming back to the input from the question l = [[1, 2, 3], [4, 5, 6], [7, 8, 9]], zip(*l) would be equivalent to zip([1, 2, 3], [4, 5, 6], [7, 8, ...
Insert HTML into view from AngularJS controller
...angular-sanitize.min.js"></script>
In a js file (controller or usually app.js), include ngSanitize, i.e.:
angular.module('myApp', ['myApp.filters', 'myApp.services', 'myApp.directives', 'ngSanitize'])
share
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Drawing text to with @font-face does not work at the first time
...loaded via @font-face, the text doesn't show correctly. It doesn't show at all (in Chrome 13 and Firefox 5), or the typeface is wrong (Opera 11). This type of unexpected behavior occurs only at the first drawing with the typeface. After then everything works fine.
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