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How to get the difference between two arrays in JavaScript?
...c"));
A better solution, if you don't care about backward compatibility, is using filter. But still, this solution works.
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How to retry after exception?
I have a loop starting with for i in range(0, 100) . Normally it runs correctly, but sometimes it fails due to network conditions. Currently I have it set so that on failure, it will continue in the except clause (continue on to the next number for i ).
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Pass Array Parameter in SqlCommand
I am trying to pass array parameter to SQL commnd in C# like below, but it does not work. Does anyone meet it before?
12 A...
Jade: Links inside a paragraph
I'm trying to author a few paragraphs with Jade, but finding it difficult when there are links inside a paragraph.
13 Answ...
Twitter bootstrap modal-backdrop doesn't disappear
I am using the Twitter bootstrap Modal dialog. When I click on the submit button of the bootstrap modal dialog, it sends an AJAX request. My problem is that the modal-backdrop doesn't disappear. The Modal dialog does disappear correctly, but instead "modal-backdrop in" that creates the opacity on th...
How to search and replace text in a file?
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fileinput already supports inplace editing. It redirects stdout to the file in this case:
#!/usr/bin/env python3
import fileinput
with fileinput.FileInput(filename, inplace=True, backup='.bak') as file:
for line in file:
print(line.replace(text_to_...
JavaScript null check
...iable:
var a;
alert(b); // ReferenceError: b is not defined
A variable with the value undefined:
var a;
alert(a); // Alerts “undefined”
When a function takes an argument, that argument is always declared even if its value is undefined, and so there won’t be any error. You are right about...
Which is faster: while(1) or while(2)?
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Both loops are infinite, but we can see which one takes more instructions/resources per iteration.
Using gcc, I compiled the two following programs to assembly at varying levels of optimization:
int main(void) {
while(1) {}
return 0;
}
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Implementing IDisposable correctly
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edited Dec 10 '19 at 16:29
wonea
4,3051515 gold badges6868 silver badges131131 bronze badges
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Callback when CSS3 transition finishes
I'd like to fade out an element (transitioning its opacity to 0) and then when finished remove the element from the DOM.
5 ...