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Development

Why does recursive binding of arrow function in Haskell loop infinitely?

I’m learning how to use Arrows in Haskell by implementing a simple interpreter for the comm language. I have an eval function which evaluates an expression into a value, but eval loops indefinitely when feeding in any expression. — Interp.hs eval :: A Expr Val eval = proc e -> case e of Lit x […]

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Database Development

Writing Database rules for Firebare cloud storage

So I’m writing rules for my database in firebase. And I’m trying to allow a person to delete his own post only. But when I’m testing it anybody can delete anyone’s post. I have tried writing if request.auth.uid==resource.data.User.uid but it doesn’t work rules_version = ‘2’; service cloud.firestore { match /databases/{database}/documents { match /posts/{postId}{ allow delete: […]

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Development Windows

Getting windows script host error 800A03EC

I was trying to make a bot for a math website called matematikfessor.dk I ran the program but got error code appeared on windows script host The code variables are in Danish, sorry. var Opgave; function init() { Opgave = SkafOpgave(); switch(Opgave) { case “topic:afrunding-af-tal-96”: setInterval(function() {Afrunding()}, 100); break; case “topic:reduktion-med-tal-86”: setInterval(function() {ReduktionMedTal()}, 100); break; […]

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Development

C: are operations between members allowed in the struct declaration?

I am trying to use a struct to represent an object with three properties, but the third property is dependent on the first two. So, I basically attempted this: typedef struct{ int x; int y; int z = x + y; }xyz_type; But I get a compiler error. Does the C language not support this […]

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Angular Development

display checkbox based on object response Angular

I want to create dynamic checkbox based on object response,It should create multiple checkbox based on this response: test.json [ { “header”:{ “serviceId”:”inquiry-service”, “productCode”:”JPJXXX”, “transactionId”:”cfad2ac7c16XXX” }, “data”:{ “items”:[ { “offenceType4″:””, “permSpeed”:”110″, “actSpeed”:”123″, “itemAttributes”:{ “attribute5″:””, “attribute4″:”VQ3XXX”, “attribute7″:”14.21.00”, “attribute6″:”2018-03-22”, “attribute1″:”XXXXX”, “attribute3″:”XXXXXX”, “attribute2″:”XXXXXX” }, “offenceLoc”:”XXXXXX”, “itemNo”:”1″, “summonDate”:”2018-04-02″, “distCode”:”XXXXXX”, “summonType”:”2″, “hbtlOffndr”:”N”, “itemAmount”:15000, “itemAttributesCount”:7, “summonAmt”:”150.00″, “offenceType1″:”48”, “offenceCode1″:”XXXXXX”, “offenceType2″:””, “offenceCode2″:””, “offenceType3″:””, […]

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Development

Pass a local param to a global param in XSLT using Java

Inside my For-each loop, two columns, Division (string) and Paydate (date) are included as columns. Once the For-each loop is done, I write an offset line so that the Journal Entry I am creating is in balance. However, I need to include the Division and Paydate on the offset line. Since these two values only […]

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Development

How does NodeJS handle parallel execution for same functions in a loop?

I am running the same asynchronous function in a loop without awaiting the function in a system with 2 CPUs. When I logged to the process id from inside the function, all of them have the same process id, How does Node handle such parallel executions? Are both the CPUs being using perfectly? Do I […]

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Development

How to show price of product on non shop page

I would like to show the prices of all available products for users on a non-shop page. If I look into the code of the display of products on the shop page it gives me this line: <span t-if=”product.price” t-esc=”product.price” t-options=”{‘widget’: ‘monetary’, ‘display_currency’: website.currency_id}”/> On my other page I call my products using this code: […]

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Development

connecting application with mongodb Atlas:

TypeError: Cannot read property ‘split’ of null at parseSrvConnectionString (E:\GITHUB REPOS\devconnector-master\node_modules\mongodb-core\lib\uri_parser.js:40:23) at parseConnectionString (E:\GITHUB REPOS\devconnector-master\node_modules\mongodb-core\lib\uri_parser.js:514:12) at connect (E:\GITHUB REPOS\devconnector-master\node_modules\mongodb\lib\operations\mongo_client_ops.js:195:3) at connectOp (E:\GITHUB REPOS\devconnector-master\node_modules\mongodb\lib\operations\mongo_client_ops.js:284:3) at executeOperation (E:\GITHUB REPOS\devconnector-master\node_modules\mongodb\lib\utils.js:416:24) at MongoClient.connect (E:\GITHUB REPOS\devconnector-master\node_modules\mongodb\lib\mongo_client.js:175:10) at Promise (E:\GITHUB REPOS\devconnector-master\node_modules\mongoose\lib\connection.js:612:12) at new Promise () at NativeConnection.Connection.openUri (E:\GITHUB REPOS\devconnector-master\node_modules\mongoose\lib\connection.js:609:19) at Mongoose.connect (E:\GITHUB REPOS\devconnector-master\node_modules\mongoose\lib\index.js:321:15) at Object. (E:\GITHUB REPOS\devconnector-master\server.js:22:4) at Module._compile (internal/modules/cjs/loader.js:738:30) at […]

Categories
Development

If statements with user input

I am learning about if statements and I can’t get the input function to work with the if-else statements I’ve had a look at the answers posted on other forums and the example code they provide doesn’t work either Message = input(“Enter Your Message”) if Message == “Hello”: print(“Hi!”) else: print(“Bye”) When excecute this code, […]