大约有 6,884 项符合查询结果（耗时：0.0374秒） [XML]
Python integer incrementing with ++ [duplicate]
...
Care to suggest an elegant replacement for this: reserved_index = 0; col_names = [name if name != '_' else 'reserved' + (reserved_index++) for name in column_names]? I'm passed a list of column names where some that are not interesting are just '_'. I need to construct a temporary...
How to read lines of a file in Ruby
...
Can you use with_index with this as well?
– Joshua Pinter
Jul 5 '15 at 18:11
2
...
PHP - find entry by object property from an array of objects
...swers for more information on the latter - Reference PHP array by multiple indexes
share
|
improve this answer
|
follow
|
...
Why does 'git commit' not save my changes?
...
Maybe an obvious thing, but...
If you have problem with the index, use git-gui. You get a very good view how the index (staging area) actually works.
Another source of information that helped me understand the index was Scott Chacons "Getting Git" page 259 and forward.
I started off...
Understanding the Gemfile.lock file
...dependencies sourced from a Rubygems server. That may be the main Rubygems index, at Rubygems.org, or it may be a custom index, such as those available from Gemfury and others. Within this section you'll see:
remote: one or more lines specifying the location of the Rubygems index(es)
specs: a list...
Is there a way to select sibling nodes?
...e of the following should do the trick.
// METHOD A (ARRAY.FILTER, STRING.INDEXOF)
var siblings = function(node, children) {
siblingList = children.filter(function(val) {
return [node].indexOf(val) != -1;
});
return siblingList;
}
// METHOD B (FOR LOOP, IF STATEMENT, ARRAY.PUSH...
How to remove files from git staging area?
...
You can unstage files from the index using
git reset HEAD -- path/to/file
Just like git add, you can unstage files recursively by directory and so forth, so to unstage everything at once, run this from the root directory of your repository:
git reset H...
Wrong requestCode in onActivityResult
...quest code is not wrong. When using v4 support library fragments, fragment index is encoded in the top 16 bits of the request code and your request code is in the bottom 16 bits. The fragment index is later used to find the correct fragment to deliver the result.
Hence for Activities started form f...
How to get record created today by rails activerecord?
...ws.
Typically, if you perform lookups based on created_at column, add an index on the table in your migration file.
add_index :posts, :created_at
Now, to lookup records created today:
Rails 3/4
Post.where("created_at >= ?", Time.zone.now.beginning_of_day)
To lookup posts created on a spe...
git: Switch branch and ignore any changes without committing
...inor changes) or
checkout -f (When switching branches, proceed even if the index or the working tree differs from HEAD. This is used to throw away local changes. )
Or, more recently:
With Git 2.23 (August 2019) and the new command git switch:
git switch -f <branch-name>
(-f is short for --...