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Read first N lines of a file in python
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The with statement works on Python 2.6, and requires an extra import statement on 2.5. For 2.4 or earlier, you'd need to rewrite the code with a try...except block. Stylistically, I prefer the first option, although as mentioned the second is more robust for short files.
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Semi-transparent color layer over background-image?
..., so here's another option.
This one is pure CSS, and doesn't require any extra HTML.
box-shadow: inset 0 0 0 1000px rgba(0,0,0,.2);
There are a surprising number of uses for the box-shadow feature.
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throwing exceptions out of a destructor
... ~Bad2()
{
throw 1;
}
};
int main(int argc, char* argv[])
{
try
{
Bad bad;
}
catch(...)
{
std::cout << "Print This\n";
}
try
{
if (argc > 3)
{
Bad bad; // This destructor will thr...
Div height 100% and expands to fit content
...element a little bit taller than the children elements, then check for any extra spaces and/or &nbsp;, remove them. Also try to adjust the line-height. For example I've put line-height: 0, because I didn't need text, just to show an image.
– Zorgatone
Nov ...
How do you append to a file in Python?
... "a"), that a indicates the appending the file, that means allow to insert extra data to the existing file.
You can just use this following lines to append the text in your file
def FileSave(filename,content):
with open(filename, "a") as myfile:
myfile.write(content)
FileSave("test.tx...
How to iterate over a JavaScript object?
...ts and their properties.
If you want to do it "in chunks", the best is to extract the keys in an array. As the order isn't guaranteed, this is the proper way. In modern browsers, you can use
let keys = Object.keys(yourobject);
To be more compatible, you'd better do this :
let keys = [];
for (...
form_for with nested resources
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Jam's way works, but you can end up with extra routes that you probably don't know about. It's better to be explicit.
– cdunn2001
Jun 28 '14 at 19:13
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Bootstrap 3: pull-right for col-lg only
...ludes responsive floats, so in this case you'd just use float-lg-right. No extra CSS is needed.
Bootstrap 4 Demo
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Using relative URL in CSS file, what location is it relative to?
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What difference does the extra "/" at the front make?
– Casebash
May 12 '11 at 6:36
17
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Fragment over another fragment issue
...he bottom fragment has to be informed the top one is gone. It's just added extra logic to maintain.
– X.Y.
Nov 14 '19 at 3:20
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