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How do I measure request and response times at once using cURL?

I have a web service that receives data in JSON format, processes the data, and then returns the result to the requester. 1...
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How to get first character of string?

I have a string, and I need to get its first character. 16 Answers 16 ...
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Swift Beta performance: sorting arrays

I was implementing an algorithm in Swift Beta and noticed that the performance was very poor. After digging deeper I realized that one of the bottlenecks was something as simple as sorting arrays. The relevant part is here: ...
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Compiling problems: cannot find crt1.o

I have a virtual Debian system which I use to develop. 17 Answers 17 ...
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How do you force a CIFS connection to unmount

I have a CIFS share mounted on a Linux machine. The CIFS server is down, or the internet connection is down, and anything that touches the CIFS mount now takes several minutes to timeout, and is unkillable while you wait. I can't even run ls in my home directory because there is a symlink pointin...
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Which version of PostgreSQL am I running?

I'm in a corporate environment (running Debian Linux) and didn't install it myself. I access the databases using Navicat or phpPgAdmin (if that helps). I also don't have shell access to the server running the database. ...
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Why does the order in which libraries are linked sometimes cause errors in GCC?

Why does the order in which libraries are linked sometimes cause errors in GCC? 9 Answers ...
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Performance surprise with “as” and nullable types

I'm just revising chapter 4 of C# in Depth which deals with nullable types, and I'm adding a section about using the "as" operator, which allows you to write: ...
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How can I make console.log show the current state of an object?

In Safari with no add-ons (and actually most other browsers), console.log will show the object at the last state of execution, not at the state when console.log was called. ...
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Find a pair of elements from an array whose sum equals a given number

Given array of n integers and given a number X, find all the unique pairs of elements (a,b), whose summation is equal to X. ...