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What's the difference between ES6 Map and WeakMap?

Looking this and this MDN pages it seems like the only difference between Maps and WeakMaps is a missing "size" property for WeakMaps. But is this true? What's the difference between them? ...
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Hidden Features of C#? [closed]

... lambdas and type inference are underrated. Lambdas can have multiple statements and they double as a compatible delegate object automatically (just make sure the signature match) as in: Console.CancelKeyPress += (sender, e) =&gt...
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How do you get assembler output from C/C++ source in gcc?

... the preprocessor (cpp) over helloworld.c, perform the initial compilation and then stop before the assembler is run. By default this will output a file helloworld.s. The output file can be still be set by using the -o option. gcc -S -o my_asm_output.s helloworld.c Of course this only works if y...
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How to run Node.js as a background process and never die?

...to keep running): nohup node server.js & There's also the jobs command to see an indexed list of those backgrounded processes. And you can kill a backgrounded process by running kill %1 or kill %2 with the number being the index of the process. Powerful solution (allows you to reconnect to ...
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(grep) Regex to match non-ASCII characters?

.... One program has a bug that prevents it working with non-ASCII filenames, and I have to find out how many are affected. I was going to do this with find and then do a grep to print the non-ASCII characters, and then do a wc -l to find the number. It doesn't have to be grep; I can use any stan...
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Send string to stdin

... This is coming from the stdin EOF or you can redirect output from a command, like diff <(ls /bin) <(ls /usr/bin) or you can read as while read line do echo =$line= done < some_file or simply echo something | read param ...
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How to get key names from JSON using jq

... one more problem. : ( I am getting different orders when i get keys alone and when i get values alone : ( – Ezhilan Mahalingam Apr 16 '14 at 20:13 2 ...
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accepting HTTPS connections with self-signed certificates

...te Authority (CA) like Verisign , GlobalSIgn , etc., listed on the set of Android Trusted Certificates, I keep getting javax.net.ssl.SSLException: Not trusted server certificate . ...
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How to find time complexity of an algorithm

...chine instructions it will execute as a function of the size of its input, and then simplify the expression to the largest (when N is very large) term and can include any simplifying constant factor. For example, lets see how we simplify 2N + 2 machine instructions to describe this as just O(N). ...
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How do you fix a bad merge, and replay your good commits onto a fixed merge?

... the one described in the question. This recipe is for fixing a bad merge, and replaying your good commits onto a fixed merge. Although filter-branch will do what you want, it is quite a complex command and I would probably choose to do this with git rebase. It's probably a personal preference. fil...