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Catch all JavaScript errors and send them to server

... I recently tested Sentry on production and it works fine (JS and other languages like PHP) 1- It's open source (You can install it on your own server) 2- You can use the free plan (100 reports / day) Or install it on your server: github.com/getsentry ...
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How do I restart nginx only after the configuration test was successful on Ubuntu?

...he service crashes when a nginx configuration file has errors. On a multi-site server this puts down all the sites, even the ones without configuration errors. ...
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How to grep for two words existing on the same line? [duplicate]

...e lines that have word2 in them. Hence, if you combine these using a pipe, it will show lines containing both word1 and word2. If you just want a count of how many lines had the 2 words on the same line, do: grep "word1" FILE | grep -c "word2" Also, to address your question why does it get stuck...
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Is an array name a pointer?

...contains space for seven integers, and you can put a value in one of them with an assignment, like this: a[3] = 9; Here is a pointer: int *p; p doesn't contain any spaces for integers, but it can point to a space for an integer. We can, for example, set it to point to one of the places in the ...
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Variable is accessed within inner class. Needs to be declared final

... If you don't want to make it final, you can always just make it a global variable. share | improve this answer | follow ...
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Android Endless List

... where when you reach the end of the list I am notified so I can load more items? 10 Answers ...
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How accurate is python's time.sleep()?

I can give it floating point numbers, such as 10 Answers 10 ...
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Why doesn't list have safe “get” method like dictionary?

... Ultimately it probably doesn't have a safe .get method because a dict is an associative collection (values are associated with names) where it is inefficient to check if a key is present (and return its value) without throwing an except...
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How to create dictionary and add key–value pairs dynamically?

...needed to add more key/value pairs Basically, you're creating an object literal with 2 properties (called key and value) and inserting it (using push()) into the array. Edit: So almost 5 years later, this answer is getting downvotes because it's not creating an "normal" JS object literal (aka m...
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How to determine if a record is just created or updated in after_save

The #new_record? function determines if a record has been saved. But it is always false in the after_save hook. Is there a way to determine whether the record is a newly created record or an old one from update? ...