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Difference between binary tree and binary search tree
Can anyone please explain the difference between binary tree and binary search tree with an example ?
12 Answers
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Pick a random element from an array
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Swift 4.2 and above
The new recommended approach is a built-in method on the Collection protocol: randomElement(). It returns an optional to avoid the empty case I assumed against previously.
let array = ["Frodo", "Sam", "Wise", "Gamgee"]...
Revert to a commit by a SHA hash in Git? [duplicate]
... git revert works. For example, I want to revert to a commit six commits behind the head, reverting all the changes in the intermediary commits in between.
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Can you supply arguments to the map(&:method) syntax in Ruby?
You're probably familiar with the following Ruby shorthand ( a is an array):
7 Answers
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How to replace ${} placeholders in a text file?
...t to pipe the output of a "template" file into MySQL, the file having variables like ${dbName} interspersed. What is the command line utility to replace these instances and dump the output to standard output?
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git ignore all files of a certain type, except those in a specific subfolder
... optional prefix ! which negates the
pattern; any matching file excluded by
a previous pattern will become
included again. If a negated pattern
matches, this will override lower
precedence patterns sources.
http://schacon.github.com/git/gitignore.html
*.json
!spec/*.json
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Why is ArrayDeque better than LinkedList
I am trying to to understand why Java's ArrayDeque is better than Java's LinkedList as they both implement Deque interface.
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Can I hex edit a file in Visual Studio?
I want to edit a binary file, but I don't want to use another tool other than Visual Studio because it's a pain to switch back and forth.
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Java List.contains(Object with field value equal to x)
I want to check whether a List contains an object that has a field with a certain value. Now, I could use a loop to go through and check, but I was curious if there was anything more code efficient.
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Oracle TNS names not showing when adding new connection to SQL Developer
I'm trying to connect to an oracle database with SQL Developer.
7 Answers
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