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How can I check the size of a collection within a Django template?

I have a list in my Django template. I want to do something only if the size of the list is greater than zero. 7 Answers...
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promise already under evaluation: recursive default argument reference or earlier problems?

Here is my R code. The functions are defined as: 4 Answers 4 ...
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Bash Script: count unique lines in file

I have a large file (millions of lines) containing IP addresses and ports from a several hour network capture, one ip/port per line. Lines are of this format: ...
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How to find the key of the largest value hash?

I have the following hash {"CA"=>2, "MI"=>1, "NY"=>1} 7 Answers 7 ...
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What is a “memory stomp”?

I just came across this blog post which mentions “stomping memory”: 3 Answers 3 ...
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Why do I need 'b' to encode a string with Base64?

Following this python example , I encode a string as Base64 with: 5 Answers 5 ...
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Why does Popen.communicate() return b'hi\n' instead of 'hi'?

Can someone explain why the result I want, "hi", is preceded with a letter 'b' and followed with a newline? 4 Answers ...
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How to check if a file exists in Documents folder?

I have an application with In-App Purchase, that when the user buy something, download one html file into the Documents folder of my app. ...
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How to write iOS app purely in C

I read here Learn C Before Objective-C? 4 Answers 4 ...
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Inserting a text where cursor is using Javascript/jquery

I have a page with a lot of textboxes. When someone clicks a link, i want a word or two to be inserted where the cursor is, or appended to the textbox which has the focus. ...