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In Bash, how can I check if a string begins with some value?

... You can select just the part of the string you want to check: if [ "${HOST:0:4}" = user ] For your follow-up question, you could use an OR: if [[ "$HOST" == user1 || "$HOST" == node* ]] ...
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How will I know when to create an interface?

...oreach-type pattern", you can define complex behaviors (Count, Max, Where, Select, etc.) for any enumerable type. share | improve this answer | follow | ...
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Converting timestamp to time ago in PHP e.g 1 day ago, 2 days ago…

... Terrible solution. Why does this have 42 upvotes and selected answer? Since when does every month have 30 days? – BadHorsie Mar 14 '14 at 17:22 5 ...
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Getting all types that implement an interface

...of(IMyInterface); var types = AppDomain.CurrentDomain.GetAssemblies() .SelectMany(s => s.GetTypes()) .Where(p => type.IsAssignableFrom(p)); Basically, the least amount of iterations will always be: loop assemblies loop types see if implemented. ...
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jQuery .live() vs .on() method for adding a click event after loading dynamic html

...er on a parent object (that does not get loaded dynamically) and give it a selector that matches your dynamic object like this: $('#parent').on("click", "#child", function() {}); The event handler will be attached to the #parent object and anytime a click event bubbles up to it that originated on...
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What is a clean, pythonic way to have multiple constructors in Python?

...sing __new__. This could be used if the type of initialization cannot be selected based on the type of the constructor argument, and the constructors do not share code. Example: class MyClass(set): def __init__(self, filename): self._value = load_from_file(filename) @classmeth...
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Neo4j - Cypher vs Gremlin query language

...tp://docs.sqlalchemy.org/en/rel_0_7/core/tutorial.html#intro-to-generative-selects to know what I mean.) This seems to be a bit more tricky with Cypher. share | improve this answer | ...
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Does Python have a ternary conditional operator?

... This one emphasizes the primary intent of the ternary operator: value selection. It also shows that more than one ternary can be chained together into a single expression. – Roy Tinker Oct 4 '10 at 21:14 ...
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How do I generate a random int number?

...SEED.This SEED is the beginning point, the trigger which instigates him to select the RANDOM value. Now if a SEED is easy to guess then those kind of random numbers are termed as PSEUDO and when a seed is difficult to guess those random numbers are termed SECURED random numbers. For example a perso...
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PHP exec() vs system() vs passthru()

...ed restrictions, such as selinux. But a well set-up system will have those selectively off. Of course a shared host is a different story, but you won't offer a shared environment to esteemed clients either, no? – Christian Sep 18 '11 at 10:01 ...