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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
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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.
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Compiling problems: cannot find crt1.o
I have a virtual Debian system which I use to develop.
17 Answers
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Why can templates only be implemented in the header file?
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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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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?
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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.
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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 do you validate a URL with a regular expression in Python?
...m building an app on Google App Engine. I'm incredibly new to Python and have been beating my head against the following problem for the past 3 days.
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