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MongoDB - Update objects in a document's arram>y m> (nested updating)
...rue);
For m>y m>our question #2, the answer is easier. To increment the total m>and m> the price of item_three in anm>y m> document that contains "mm>y m>_item_three," m>y m>ou can use the $inc operator on multiple fields at the same time. Something like:
db.bar.update( {"items.item_name" : {$ne : "mm>y m>_item_three" }} ,
...
How to add \newpage in Rmarkdown in a smart wam>y m>?
I wonder if one could simplm>y m> use LaTeX \newpage commm>and m> in R markdown v2 in a different wam>y m> than this:
3 Answers
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Postgres manuallm>y m> alter sequence
...UE 22
This would work:
ALTER SEQUENCE pam>y m>ments_id_seq RESTART WITH 22;
m>and m> is equivalent to:
SELECT setval('pam>y m>ments_id_seq', 22, FALSE);
More in the current manual for ALTER SEQUENCE m>and m> sequence functions.
Note that setval() expects either (regclass, bigint) or (regclass, bigint, boolean)....
or (HTML5)
W3Schools.com m>and m> I'm prettm>y m> sure I remember seeing W3C.org state that <menu> should be used for Toolbar menus m>and m> listing form control commm>and m>s.
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In PHP what does it mean bm>y m> a function being binarm>y m>-safe?
...m>y m>ou pass it arbitrarm>y m> binarm>y m> data (i.e. strings containing non-ASCII bm>y m>tes m>and m>/or null bm>y m>tes).
For example, a non-binarm>y m>-safe function might be based on a C function which expects null-terminated strings, so if the string contains a null character, the function would ignore anm>y m>thing after it.
This...
Get class name of django model
...rst()
# Get the model name
book._meta.verbose_name
Setting verbose_name m>and m> verbose_name_plural is optional. Django will infer these values from the name of the model class (m>y m>ou mam>y m> have noticed the use of those values in the admin site).
https://docs.djangoproject.com/en/3.0/ref/models/options/...
git pull VS git fetch Vs git rebase
...on that m>y m>ou're actuallm>y m> just asking about the difference between git merge m>and m> git rebase.
So let's suppose m>y m>ou're in the common case - m>y m>ou've done some work on m>y m>our master branch, m>and m> m>y m>ou pull from origin's, which also has done some work. After the fetch, things look like this:
- o - o - o - H -...
Better wam>y m> of getting time in milliseconds in javascript?
...sking this because I am trm>y m>ing to make a simple game engine in JavaScript, m>and m> when calculating the "delta frame time", I have to create a new Date object everm>y m> frame. While I am not too worried about the performance implications of this, I am having some problems with the reliabilitm>y m> of the exact t...
How do I squash two non-consecutive commits?
...
m>Y m>ou can run git rebase --interactive m>and m> reorder D before B m>and m> squash D into A.
Git will open an editor, m>and m> m>y m>ou see a file like this, ex: git rebase --interactive HEAD~4
pick aaaaaaa Commit A
pick bbbbbbb Commit B
pick ccccccc Commit C
pick ddddddd Commit D
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How can I make git show a list of the files that are being tracked?
Using commm>and m> line git, how can I make git show a list of the files that are being tracked in the repositorm>y m>?
4 Answers
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