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How to avoid “cannot load such file — utils/popen” from homebrew on OSX
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The problem mainly occurs after updating OS X to El Capitan (OS X 10.11) or macOS Sierra (macOS 10.12).
This is because of file permission issues with El Capitan’s or later macOS's new SIP process. Try changing the permissions for the /usr/local directory:
$ sudo cho...
Using grep to search for a string that has a dot in it
I am trying to search for a string 0.49 (with dot) using the command
9 Answers
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How to send emails from my Android application?
I am developing an application in Android. I don't know how to send an email from the application?
21 Answers
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Shards and replicas in Elasticsearch
I am trying to understand what shard and replica is in Elasticsearch, but I didn't manage to understand it. If I download Elasticsearch and run the script, then from what I know I have started a cluster with a single node. Now this node (my PC) have 5 shards (?) and some replicas (?).
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What is the MySQL VARCHAR max size?
I would like to know what the max size is for a MySQL VARCHAR type.
7 Answers
7
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Sorting 1 million 8-decimal-digit numbers with 1 MB of RAM
I have a computer with 1 MB of RAM and no other local storage. I must use it to accept 1 million 8-digit decimal numbers over a TCP connection, sort them, and then send the sorted list out over another TCP connection.
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Cast Int to enum in Java
What is the correct way to cast an Int to an enum in Java given the following enum?
17 Answers
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How to set HTTP header to UTF-8 using PHP which is valid in W3C validator?
I have several PHP pages echoing out various things into HTML pages with the following code.
6 Answers
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Converting a Uniform Distribution to a Normal Distribution
How can I convert a uniform distribution (as most random number generators produce, e.g. between 0.0 and 1.0) into a normal distribution? What if I want a mean and standard deviation of my choosing?
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Validate decimal numbers in JavaScript - IsNumeric()
What's the cleanest, most effective way to validate decimal numbers in JavaScript?
49 Answers
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