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Node.js Mongoose.js string to ObjectId function
Is there a function to turn a string into an objectId in node using mongoose? The schema specifies that something is an ObjectId, but when it is saved from a string, mongo tells me it is still just a string. The _id of the object, for instance, is displayed as objectId("blah") .
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Select Multiple Fields from List in Linq
... in your code:
var cats = listObject
.Select(i => new { i.category_id, i.category_name })
.Distinct()
.OrderByDescending(i => i.category_name)
.ToArray();
Since you (apparently) need to store it for later use, you could use the GroupBy operator:
Data[] cats = listObject
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How can I deploy/push only a subdirectory of my git repo to Heroku?
...version controlled using Git. Serve creates an output folder with static files that I want to deploy to Heroku.
4 Answers...
Google Chromecast sender error if Chromecast extension is not installed or using incognito
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You should file feedback in the Cast extension to report your issue.
– Leon Nicholls
Sep 18 '14 at 22:12
3
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WPF Databinding: How do I access the “parent” data context?
... Sadly didn't work for me because the parent is in a different file.
– Thomas
Dec 20 '15 at 9:38
@Thomas67...
How can I strip the whitespace from Pandas DataFrame headers?
I am parsing data from an Excel file that has extra white space in some of the column headings.
3 Answers
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How to put more than 1000 values into an Oracle IN clause [duplicate]
...000 items in a static IN clause? I have a comma delimited list of many of IDs that I want to use in an IN clause, Sometimes this list can exceed 1000 items, at which point Oracle throws an error. The query is similar to this...
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How to create a drop-down list?
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Best way to do it is:
Preview:
XML:
<Spinner
android:id="@+id/spinner1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@android:drawable/btn_dropdown"
android:spinnerMode="dropdown"/>
Java:
//get the spinner...
How do you Encrypt and Decrypt a PHP String?
...C mode, an attacker can completely change the message. If the message is a file, an attacker can flip bits and pop calc.exe. The risks of unauthenticated encryption are severe.
– Scott Arciszewski
Apr 12 '17 at 13:38
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Secret copy to clipboard JavaScript function in Chrome and Firefox?
...definitely not a browser function, and cannot be used in normal JavaScript files. The following functions also seems to work in the JavaScript console, after playing around with it a bit:
clear()
profile()
Running these in the Chrome console reveals the source behind these functions in the W...