大约有 19,120 项符合查询结果（耗时：0.0347秒） [XML]
Create objective-c class instance by name?
...e than legit - it is the base for any serialization of object hierarchy to file/memory-block/plist/whatever. Many times you DO NOT KNOW in advance which classes you'll need to instantiate. My use-case is the tedious need to "register" gazillion "NSValueTransformer"s and instead of duplicating [NSVa...
Determine if Python is running inside virtualenv
...+. If it's failing (I got "bad marshal data") you'll need to wipe the .pyc files with find /path/to/venv -type f -name "*.pyc" -exec rm {} \+ (don't worry, they'll rebuild automatically).
– jeremysprofile
Oct 29 '18 at 20:47
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Do I need quotes for strings in YAML?
...ionalisation of a Rails project. I am a little confused though, as in some files I see strings in double-quotes and in some without. A few points to consider:
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How to get Linux console window width in Python
...st is reasonably universal on linux. It opens the 'stty size' command as a file, 'reads' from it, and uses a simple string split to separate the coordinates.
Unlike the os.environ["COLUMNS"] value (which I can't access in spite of using bash as my standard shell) the data will also be up-to-date wh...
Remove all multiple spaces in Javascript and replace with single space [duplicate]
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i'm reading data in from a txt file (via AJAX), and @InfinitiesLoop regex worked fine but Josiah's didn't
– Jeff
Apr 23 '12 at 13:48
2
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Getting output of system() calls in Ruby
...e as part of my command? That is, what would something like system("ls " + filename) translate into when backticks are to be used?
– Vijay Dev
Dec 27 '09 at 17:08
47
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How can I rename a database column in a Ruby on Rails migration?
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$ > rails g migration ChangeColumnName
which will create a migration file similar to:
class ChangeColumnName < ActiveRecord::Migration
def change
rename_column :table_name, :old_column, :new_column
end
end
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Temporarily disable some plugins using pathogen in vim.
... You could also start vim as vim -u NONE -N and then once inside vim, do :filetype plugin on to enable filetype plugins.
– frabjous
Nov 26 '10 at 5:00
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How can I make Visual Studio's build be very verbose?
...uilding in the developer prompt using msbuild with the solution or project filename as cli argument does show the cl call with its arguments.
– Emile Vrijdags
Jul 10 '18 at 9:50
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Viewing all `git diffs` with vimdiff
...h Vimdiff " as a guide, and it's working as expected unless there are many files with changes.
4 Answers
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