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Find MongoDB records where array field is not empty
All of my records have a field called "pictures". This field is an array of strings.
11 Answers
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Get Slightly Lighter and Darker Color from UIColor
I was looking to be able to turn any UIColor into a gradient. The way I am intending to do this is by using Core Graphics to draw a gradient. What I am trying to do is to get a color, lets say:
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Regular expression to match numbers with or without commas and decimals in text
I'm trying to locate and replace all numbers in a body of text. I've found a few example regex's, which almost solve the problem, but none are perfect yet. The problem I have is that the numbers in my text may or may not have decimals and commas. For example:
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How to test which port MySQL is running on and whether it can be connected to?
I have installed MySQL and even logged in there as a user.
13 Answers
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Validating IPv4 addresses with regexp
I've been trying to get an efficient regex for IPv4 validation, but without much luck. It seemed at one point I had had it with (25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?(\.|$)){4} , but it produces some strange results:
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How to validate IP address in Python? [duplicate]
What's the best way to validate that an IP entered by the user is valid? It comes in as a string.
11 Answers
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What is the best way to initialize a JavaScript Date to midnight?
What is the simplest way to obtain an instance of new Date() but set the time at midnight?
9 Answers
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Find the PID of a process that uses a port on Windows
My service crash on startup with the classic:
7 Answers
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How do you make an array of structs in C?
I'm trying to make an array of structs where each struct represents a celestial body.
7 Answers
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What is the ultimate postal code and zip regex?
I'm looking for the ultimate postal code and zip code regex. I'm looking for something that will cover most (hopefully all) of the world.
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