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How to merge a transparent png image with another image using PIL
....png")
foreground = Image.open("test2.png")
background.paste(foreground, (0, 0), foreground)
background.show()
First parameter to .paste() is the image to paste. Second are coordinates, and the secret sauce is the third parameter. It indicates a mask that will be used to paste the image. If you p...
How do you display JavaScript datetime in 12 hour AM/PM format?
...' : 'am';
hours = hours % 12;
hours = hours ? hours : 12; // the hour '0' should be '12'
minutes = minutes < 10 ? '0'+minutes : minutes;
var strTime = hours + ':' + minutes + ' ' + ampm;
return strTime;
}
console.log(formatAMPM(new Date));
...
How to map and remove nil values in Ruby
...ct it to become the norm very soon.
For example:
numbers = [1, 2, 5, 8, 10, 13]
enum.filter_map { |i| i * 2 if i.even? }
# => [4, 16, 20]
In your case, as the block evaluates to falsey, simply:
items.filter_map { |x| process_x url }
"Ruby 2.7 adds Enumerable#filter_map" is a good read on t...
How to reuse an ostringstream?
...lear, then seek the appropriate sequence to the begin:
s.clear();
s.seekp(0); // for outputs: seek put ptr to start
s.seekg(0); // for inputs: seek get ptr to start
That will prevent some reallocations done by str by overwriting whatever is in the output buffer currently instead. Results are like...
How to get first N elements of a list in C#?
...
answered Nov 26 '08 at 7:28
Matt HamiltonMatt Hamilton
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...
Why do Lua arrays(tables) start at 1 instead of 0?
...
Although I too found them weird at the beginning, I have learned to love 0-based arrays. But I get by OK with Lua's 1-based arrays, especially by
using Lua's generic for loop and the ipairs operator—I can usually avoid worrying about just how arrays are indexed.
...
Following git-flow how should you handle a hotfix of an earlier release?
...e.
This thread has more information, with these examples:
git checkout 6.0
git checkout -b support/6.x
git checkout -b hotfix/6.0.1
... make your fix, then:
git checkout support/6.x
git merge hotfix/6.0.1
git branch -d hotfix/6.0.1
git tag 6.0.1
or using git flow commands
git flow support st...
Calculating sum of repeated elements in AngularJS ng-repeat
...</td>
In Controller
$scope.getTotal = function(){
var total = 0;
for(var i = 0; i < $scope.cart.products.length; i++){
var product = $scope.cart.products[i];
total += (product.price * product.quantity);
}
return total;
}
...
CSS to set A4 paper size
... the width of ~196mm and then scale the whole content up to the width of 210mm ~ but strangely exactly the same scaling factor is applied to contents with any width smaller than 210mm).
To fix this problem you can simply in the print media rule assign the A4 paper width and hight to html, body or di...
Difference between toFixed() and toPrecision()?
...For completeness, I should mention that toFixed() is equivalent to toFixed(0) and toPrecision() just returns the original number with no formatting.
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