I'm hoping for some help converting a 2D array into an object.
In my spreadsheet I have a table of names and Google Drive folder identifiers (these are just examples, not real identifiers haha) -
Name
Identifier
Name1
27uXqJux5ub4xlSOJpDgozuSBXpzdaqMbz
Name2
VDe67puraYNFyPNCptBkffuQcajjJLFzE
Using getvalues(), I have created an array of these cells called folderIds (leaving out the header row).
I then have another array which contains just the names, called names.
[Name1, Name2, Name3, etc]
My intention is to run a loop which uses the names in the second array to retrieve the folder identifier in the first array, but I'm stuck on how to convert folderIds into an object so that I can use the names array as a key to retrieve the folder identifier. The solution needs to be dynamic as folderIds will grow (and possibly change) over time, so I can't just manually define the object.
Ideally I would have an object that looks like this -
const folderIdsObj = {
"Name1" : "27uXqJux5ub4xlSOJpDgozuSBXpzdaqMbz",
"Name2" : "VDe67puraYNFyPNCptBkffuQcajjJLFzE"
etc
}
And I would use folderIdsObj[names[i]] in a loop to retrieve the relevant folder identifier.
I've been digging around all over the internet, and it looks like the solution might be to use the map method, but I've never used map before and I'm not really sure where to start. I had a go but couldn't figure out how to map folderIds[0][0] to folderIds[0][1] (for example).
There may be a much simpler solution that I've missed too, though I've tried various array methods with no success.
Thanks in advance!
you can achieve this by implementing this code...
twoDArray = [["Name1","12ee1du912nc1"], ["Name2", "1231cqnisani83"]]
const obj = Object.fromEntries(twoDArray.map(([k, v]) => [k, v]));
console.log(obj);
more information here
Related
I'm using the TJsonDataObjects Delphi component (https://github.com/ahausladen/JsonDataObjects). I am using it as the data store for what is is displayed in a editable TreeView. In the treeview I store the "path" using a JsonPath string. When the user modifies the values in the Treeview, the path property allows me locate the record by path and modify it via the component path property.
My issue is when a user wants to delete a record, I need to remove it from the JSON file. It does note seem like there is a simple way to do this via its "path. I expect I could trim off the item from the path to gets it parent and then delete it by "name" or "index" if an array. I was hoping there might just be an easier way before I start to code this up.
On a similar node, I didn't find any way to extract the text path of a given item. While it can modify or locate a node by path, there does not seem to be a way to get the actual path so I'm doing that manually as I parse the JSON file (yuck). Anyone have a better solution?
For example, this is the path of the "value" property in the JSON below: Level1.Level2.Level3
{
"Level1": {
"Level2": {
"Level3": "value"
}
}
}
In TJsonDataObjects you can set the path with:
Json.Path['Level1.Level2.Level3'] := "value";
//or
Json['Level1']['Level2']['Level3'] := "value";
Or retrieve it with:
prop := Json.Path['Level1.Level2.Level3'];
// or
prop := Json['Level1']['Level2']['Level3'];
So if you want to remove Level3, it would be nice if there was some simple function like Json.DeletePath('Level1.Level2.Level3');. As far as I can tell, there is nothing that does this. Since this is a very complex unit, I thought someone might have an easy answer that I overlooked. I have coded a way around this (as described above).
As to the second question, while you can access a value by its path, there is no function to "return" a path from a given node. And yes, I can and do build it as I go along, it would be handy as that way it remains consistent in its format of the JsonPath.
I am using Azure Data Factory. I'm trying to use a String variable to lookup a Key in a JSON array and retrieve its Value. I can't seem to figure out how to do this in ADF.
Details:
I have defined a Pipeline Parameter named "obj", type "Object" and content:
{"values":{"key1":"value1","key2":"value2"}}
Parameter definition
I need to use this pipeline to find a value named "key1" and return it as "value1"; "key2" and return it as "value2"... and so on. I'm planning to use my "obj" as a dictionary, to accomplish this.
Technically speaking, If i want to find the value for key2, I can use the code below, and it will be returned "value2":
#pipeline().parameters.obj.values.key2
What i can't figure out is how to do it using a variable (instead of hardcoded "key2").
To clear things out: I have a for-loop and, inside it, i have just a copy activity: for-each contents
The purpose of the copy activity is to copy the file named item().name, but save it in ADLS as whatever item().name translates to, according to "obj"
This is how the for-loop could be built, using Python: python-for-loop
In ADF, I tried a lot of things (using concat, replace...), but none worked. The simpliest woult be this:
#pipeline().parameters.obj.values.item().name
but it throws the following error:
{"code":"BadRequest","message":"ErrorCode=InvalidTemplate, ErrorMessage=Unable to parse expression 'pipeline().parameters.obj.values.item().name'","target":"pipeline/name_of_the_pipeline/runid/run_id","details":null,"error":null}
So, can you please give any ideas how to define my expression?
I feel this must be really obvious, but I'm not getting there.....
Thanks.
Hello fellow Pythonista!
The solution in ADF is actually to reference just as you would in Python by enclosing the 'variable' in square brackets.
I created a pipeline with a parameter obj like yours
and, as a demo, the pipeline has a single Set Variable activity that got the value for key2 into a variable.
This is documented but you need X-ray vision to spot it here.
Based on your comments, this is the output of a Filter activity. The Filter activity's output is an object that contains an array named value, so you need to iterate over the "output.value":
Inside the ForEach you reference the name of the item using "item().name":
EDIT BASED ON MORE INFORMATION:
The task is to now take the #item().name value and use it as a dynamic property name against a JSON array. This is a bit of a challenge given the limited nature of the Pipeline Expression Language (PEL). Array elements in PEL can only be referenced by their index value, so to do this kind of complex lookup you will need to loop over the array and do some string parsing. Since you are already inside a FOR loop, and nested FOR loops are not supported, you will need to execute another pipeline to handle this process AND the Copy activity. Warning: this gets ugly, but works.
Child Pipeline
Define a pipeline with two parameters, one for the values array and one for the item().name:
When you execute the child pipeline, pass #pipeline.parameters.obj.values as "valuesArray" and #item().name as "keyValue".
You will need several string parsing operations, so create some string variables in the Pipeline:
In the Child Pipeline, add a ForEach activity. Check the Sequential box and set the Items to the valuesArray parameter:
Inside the ForEach, start by cleaning up the current item and storing it as a variable to make it a little easier to consume.
Parse the object key out of the variable [this is where it starts to get a little ugly]:
Add an IF condition to test the value of the current key to the keyValue parameter:
Add an activity to the TRUE condition that parses the value into a variable [gets really ugly here]:
Meanwhile, back at the Pipeline
At this point, after the ForEach, you will have a variable (IterationValue) that contains the correct value from your original array:
Now that you have this value, you can use that variable as a DataSet parameter in the Copy activity.
I would like something similar to what node-odata offers, but I do not want to wrap it around my database (I am using Cassandra and already have an Express app set up with routes, etc).
Currently, I grab data from the database (which will ultimately return a JSON object to the user) and then using the values passed in the query string I modify the results with JavaScript and pass the modified JSON object on through to the user.
I cannot pass in a query string like this http://localhost:3001/getSomeData?name=jim&age=21||eyeColor=red which includes logical operators in the query string, and would grab all data and filter it where the name is "jim", the age is "21" OR eyeColor is "red". So this would give me all Jims that have either eyeColor red and/or age of 21. If I used this age=21&&eyeColor=red I would expect to get all Jims that have BOTH eye color of red and are 21 years old.
I was thinking of using a custom query string that can be passed in (i.e. inclusive=age&inclusive=eyeColor appended at the end of the query string) and in Node, I would modify the filter results to treat these properties (age and eyeColor) as if they were passed in with the || OR operator). However, this is quite verbose, and I was hoping there was a library or another simpler implementation out there that solves this problem, or somehow lets me pass in simple logical operators into the query string.
I ended up using this library to achieve what I wanted: https://www.npmjs.com/package/jspath
It's well document and worked perfectly for my situation.
npm i querystringify //or
https://cdnjs.cloudflare.com/ajax/libs/qs/6.7.0/qs.min.js
//it will will return an object
const myObject = Qs.parse(location.search, {ignoreQueryPrefix: true});
//you can use object destructuring.
const {age,eyeColor}=Qs.parse(location.search, {ignoreQueryPrefix: true})
By default, parsing will include "?" too.
{ignoreQueryPrefix: true} this option will omit "?".
I'm trying to access the roomName, but so far I am unable. I don't get how to get past the barriar of the info.[long ID with dashes].roomName.
At most I can get back the object of the long id or undefined.
I have tried info[0].roomName. Trying to get the first object in the info and then go on from there. The long id number is also in list.id, I don't know if that can help.
I would have set the info as an array like list is, but this is not my JSON, only one that I am working with.
{
"list":[ IGNORE, can access code here ],
"info":{
"e5eb1ccf-bd45-4d01-8e2a":{
"id":"e5eb1ccf-bd45-4d01-8e2a",
"name":"Lucy",
"roomName":"Arts" <<I need to get to this.
}
}
}
I hope this makes sense, first post and this is just a boiled down version of what I have. Putting in the id number in the info.e5eb1ccf-bd45-4d01-8e2a.roomName breaks after the first -
Once you've parsed the JSON (assuming you even have JSON*) and you have an object, you'd use brackets notation:
var room = theObject.info["e5eb1ccf-bd45-4d01-8e2a"].roomName;
console.log(room); // Arts
* Remember, JSON is a textual notation for data exchange. (More here.) If you're dealing with JavaScript source code, and not dealing with a string, you're not dealing with JSON.
When using the Model Derivative API I successfully generate an obj representation from a step file. But within that process are some quirks that I do not fully understand:
The Post job has a output.advanced.exportFileStructure property which can be set to "multiple" and a output.advanced.objectIds property which lets you specify the which parts of the model you would like to extract. From the little that the documentation states, I would expect to receive one obj file per requested objectid. Which from my experience is not the case. So does this only work for compressed files like .iam and .ipt?
Well, anyway, instead I get one obj file for all objectIds with one polygon group per objectId. The groups are named (duh!), so I would expect them to be named like their objectId but it seams like the numbers are assigned in a random way. So how should I actually map an objectId to its corresponding 3d part? Is there any way to link the information from GET :urn/metadata/:guid/properties back to their objects?
I hope somebody can shine light on this. If you need more information I can provide you with the original step file, the obj and my server log.
You misunderstood the objectIds property of the derivatives API: specifying that field allows you to export only specific components to a single obj, for example your car model has 1000 different components, but you just want to export components that represent the engine: [34, 56, 76] (I just made those up...). If you want to export each objectId to a separate obj file, you need to fire multiple jobs. the "exportFileStructure" option only applies to composite designs (i.e. assemblies) single: creates one OBJ file for all the input files (assembly file), multiple: creates a separate OBJ file for each object. A step file is not a composite design.
As you noticed the obj groups are named randomly. As far as I know there is no easy reliable way to map a component in the obj file to the original objectId because .obj is a very basic format and it doesn't support metadata. You could use a geometric approach (finding where is the component in space, use bounding boxes, ...) to achieve the mapping but it could be challenging with complex models.