oid | Utilities for object identity and hashing | Hashing library
kandi X-RAY | oid Summary
kandi X-RAY | oid Summary
This Node module provides a simple utility for object identity hashing and two related classes. This can be useful any time you need to do triple-equals (===) style comparisons across arbitrary numbers of objects. Instead of doing an O(N^2) set of comparisons, you can instead get the identity hashes of the things you want to compare, and use those in clever ways to whittle down the required comparisons, often allowing O(1) implementations.
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QUESTION
I am able to use SQLite3
as the database (DB) and get Treeview
to display data from the DB. However, I was wondering whether Treeview
has any functionality to censor the first few characters in a certain column for all entries?
Here is the lean code:
...ANSWER
Answered 2021-Jun-14 at 17:13You can make the substitution in the SQL query itself, by combining your desired prefix with a substring of the column, taken from the sixth character to the end.
Here's a pure Sqlite example:
QUESTION
I have a DB in MongoDB
like this:
ANSWER
Answered 2021-Jun-14 at 15:39$filter
to iterate loop ofSeries
array$regexMatch
to search format inseb
$size
to get total elements in filtered result
QUESTION
I'm with a problem when using memcpy
function.
I need to create an array of unsigned char
with three parts: id, size of data array, data array. But I couldn't do nor the first part yet.
ANSWER
Answered 2021-Jun-11 at 03:595
in ASCII is not printable since it's a control character. ASCII Table
You can try below and it will print a
as expected.
QUESTION
I have a python script running on an Ubuntu Linux virtual machine that needs to access a KeyVault in Azure. If have configured the following environment variables based on an "App Registration".
...ANSWER
Answered 2021-Jun-11 at 15:56What am I missing here?
There are a few issues here:
You're trying to assign an RBAC role to an App Registration. What you need to do is assign an RBAC role to the Service Principal. To get the Service Principal Id, you would need to go to
Enterprise Applications
section in Azure AD and find the Id of your Service Principal (Object ID).Assigning
Reader
RBAC role will not do the trick as this role is for managing the Key Vault itself and not the data inside it. There are two ways to solve this:
- Use Access Policies: You can define appropriate access policies in your Azure Key Vault to give access to keys, secrets and certificates to your Service Principal.
- Use Data RBAC Roles: Instead of using Management RBAC roles (like Reader, Contributor etc.), you will need to use RBAC roles for managing data inside the Key Vault.
Please see this link for more details: https://docs.microsoft.com/en-us/azure/key-vault/general/assign-access-policy-portal.
QUESTION
I have a list of data and for some of the objects in the data the tag key is empty. When plotting the data in the table they data which has tag key is plotted correctly but for the object which doesn't have the tag key it is being displayed as []. How do I remove that ?
...ANSWER
Answered 2021-Jun-11 at 08:10If your tags
field is an array, you do not want to directly call {{tags}}
in your template. You should probably have something like
QUESTION
My product document looks thus:
...ANSWER
Answered 2021-Jun-10 at 21:04Based on @turivishal's comment. The query below solved the problem.
QUESTION
I am making a node.js application where I am trying to query an array using mongoose and I am being returned the complete unfiltered document. The collection stores a single document with the following Data (This is also the data that I am receiving after executing the query):
...ANSWER
Answered 2021-Jun-10 at 10:33await incentiveModel.aggregate([
{
$unwind:'$milestones'
}
{
$match:{
$and:[{'milestones.isActive':true},{'milestones.condition':5}]
}
])
QUESTION
I'm working with a CyberPower PDU: https://www.cyberpowersystems.com/product/pdu/switched-ats/pdu15swhviec12atnet/
According to snmpwalk -v1 -m CyberPower_MIB_v2.9.MIB -c public 10.42.0.2 iso.3.6.1.4.1.3808
, the management card model is RMCARD205
and the full model name is PDU15SWHVIEC12ATNET
.
I would like to programmatically control the power to the ports, doing this via SNMP seems the most robust option. I can query the status of port 3 (say) with,
...ANSWER
Answered 2021-Jun-10 at 13:12I found the answer to my question and will post some details here, in case others are as confused as I was!
The first tip is to use the device manufacturers MIB files. CyberPower published a single MIB file (which is basically a textual description of all the properties in the hardware devices) that allows the net-snmp tools to print descriptive names for the otherwise opaque OIDs. For example, to see what I was attempting to set above, after downloading the MIB file into the current working directory,
QUESTION
I have a function that I apply to a json file. It works if it looks like this:
...ANSWER
Answered 2021-Jun-09 at 11:06You are dealing with ndjson
(Newline delimited JSON) data format.
You have to read the whole data string, split it by lines and parse each line as a JSON object resulting in a list of JSONs:
QUESTION
I am trying to get the data from another collection via lookup
collection "users"
...ANSWER
Answered 2021-Jun-08 at 15:39As docs explain:
A $match stage requires the use of an $expr operator to access the variables. $expr allows the use of aggregation expressions inside of the $match syntax.
So you have to use $expr
into $match
stage and also a let
stage.
let
stage is to define variable to use into$expr
:id: $_id
.$expr
used with$and
and$eq
is to get both conditions.
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