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Invoke(Delegate)
...nd are not
thread safe. Therefore, if you are calling a control's method from a
different thread, you must use one of the control's invoke methods to
marshal the call to the proper thread. This property can be used to
determine if you must call an invoke method, which can be useful if
you ...
How to fix getImageData() error The canvas has been tainted by cross-origin data?
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As others have said you are "tainting" the canvas by loading from a cross origins domain.
https://developer.mozilla.org/en-US/docs/HTML/CORS_Enabled_Image
However, you may be able to prevent this by simply setting:
img.crossOrigin = "Anonymous";
This only works if the remote serve...
Why can't I call read() twice on an open file?
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With Python3, use pathlib. from pathlib import Path; text = Path(filename).read_text() Takes care of open, close, etc.
– PaulMcG
Jun 19 '17 at 12:06
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How to add text inside the doughnut chart using Chart.js?
...re of the rest.
The plugin code will start with a base font size of 30px. From there it will check the width of the text and compare it against the radius of the circle and resize it based off the circle/text width ratio.
It has a default minimum font size of 20px. If the text would exceed the bou...
Hashing a string with Sha256
...ta you're hashing. Hashing the two bytes "Hi" will give a different result from hashing the three bytes "Hi". You'll have to decide which you want to do. (Presumably you want to do whichever one your friend's PHP code is doing.)
For ASCII text, Encoding.UTF8 will definitely be suitable. If you're a...
Sorting a tab delimited file
...mode of literal tab entry.
Beware, though, because copying and pasting from another place generally does not preserve tabs.
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Read environment variables in Node.js
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When using Node.js, you can retrieve environment variables by key from the process.env object:
for example
var mode = process.env.NODE_ENV;
var apiKey = process.env.apiKey; // '42348901293989849243'
Here is the answer that will explain setting environment variables in node.js
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Same-named attributes in attrs.xml for custom view
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Solution: Simply extract common attributes from both views and add them directly as children of the <resources> node:
<?xml version="1.0" encoding="utf-8"?>
<resources>
<attr name="myattr1" format="string" />
<attr name="myattr2" fo...
Different ways of loading a file as an InputStream
...interpreted as a path local to the package of the class you are calling it from. For example calling, String.class.getResourceAsStream("myfile.txt") will look for a file in your classpath at the following location: "java/lang/myfile.txt". If your path starts with a /, then it will be considered an a...
Return array in a function
...rk:
int fillarr(int* arr)
So in the same sense, what you want to return from your function is actually a pointer to the first element in the array:
int* fillarr(int arr[])
And you'll still be able to use it just like you would a normal array:
int main()
{
int y[10];
int *a = fillarr(y);
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