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How to explain dependency injection to a 5-year-old? [closed]
...on't know of any simplified tutorials, but I can give you an almost 25 250-words-or-less version:
With dependency injection an object doesn't configure its own components based on things it already knows, rather the object is configured by higher level logic, and then it calls components that it di...
Clear variable in python
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Not familiar with the None keyword. Is this similar to null in other languages?
– Bnicholas
Nov 23 '11 at 5:41
6
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Hidden features of Eclipse [closed]
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in the same vein select a word and hit ctrl-k or ctrl-shift-k and it will iterate through the selected string occurences
– Newtopian
Jun 8 '10 at 12:00
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Is a one column table good design? [closed]
...ests.
Eg. two-letter U.S. state abbreviations; Zip codes that we ship to; words legal in Scrabble; etc.
2) Sparse binary attribute, ie., in a large table, a binary attribute that will be true for only a very few records. Instead of adding a new boolean column, I might create a separate table cont...
How do I close a single buffer (out of many) in Vim?
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A word of caution: "the w in bw does not stand for write but for wipeout!"
More from manuals:
:bd
Unload buffer [N] (default: current
buffer) and delete it from
the buffer list. If the buffer was cha...
Bash/sh - difference between && and ;
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In other words it's got a short-circuit behaviour
– peterchaula
Jul 12 '18 at 8:49
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Removing the title text of an iOS UIBarButtonItem
...iver is on the navigation item stack and is second from the top—in other words, its view controller manages the views that the user would navigate back to—the value in this property is used for the back button on the top-most navigation bar. If the value of this property is nil, the system uses ...
rsync error: failed to set times on “/foo/bar”: Operation not permitted
...r as the one trying to log in via rsync on my local Bash script. In other words: I was trying to write to /remote/path/to/foo/bar on the remote server with this command: rsync -avzP --exclude '.DS_Store' /local/path/to/foo/bar/ user1@1.2.3.4:/remote/path/to/foo/bar and got the same error messages ...
Tab key == 4 spaces and auto-indent after curly braces in Vim
... a Makefile. Whereas the lines below it are setting the defaults. In other words, the "tabstop=8 ..." settings are applied later when the file is opened, and will overwrite the "tabstop=4 ..." settings that apply on initialization.
– Shervin Emami
Jun 19 '17 at...
Compare floats in php
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Extra word of warning, I wouldn't recommend littering your codebase with statements like these. If you want to do a loose float comparison, make a method like loose_float_compare so it's obvious what is going on.
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