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0 votes
1 answer
43 views

getting error when modifying the javascript property using Object.defineProperty()

obj = [{ prop11: 'value1', prop21: 'value2' }, { prop12: 'value1', prop22: 'value2' }, { key3: {} } ]; obj.forEach(element => { Object.defineProperty(obj.key3, '...
109 votes
18 answers
163k views

Get object property name as a string

Is it possible to get the object property name as a string person = {}; person.first_name = 'Jack'; person.last_name = 'Trades'; person.address = {}; person.address.street = 'Factory 1'; person....
-3 votes
2 answers
2k views

Append associative element from a flat array as a new property of the first object in an array

I need to merge two Associative Arrays with one. first array Array ( [0] => stdClass Object ( [c_id] => 743 [userid] => 570c842ce6073 [postid] ...
1028 votes
46 answers
1.5m views

Sorting object property by values

If I have a JavaScript object such as: var list = { "you": 100, "me": 75, "foo": 116, "bar": 15 }; Is there a way to sort the properties based on value? So that I end up with list = { "...
977 votes
21 answers
662k views

Accessing an object property with a dynamically-computed name

I'm trying to access a property of an object using a dynamic name. Is this possible? const something = { bar: "Foobar!" }; const foo = 'bar'; something.foo; // The idea is to access something.bar, ...
1 vote
2 answers
248 views

Unable to access JavaScript Object property from CSV file

I am having a hard time figuring out how to access a property of my javascript object. I have a Node JS application that downloads a CSV file from the WHO with covid data and then I loop through each ...
7516 votes
39 answers
3.3m views

How do I remove a property from a JavaScript object?

Given an object: let myObject = { "ircEvent": "PRIVMSG", "method": "newURI", "regex": "^http://.*" }; How do I remove the property ...
97 votes
5 answers
107k views

How to create new property dynamically

How can I create a property from a given argument inside a object's method? class Foo{ public function createProperty($var_name, $val){ // here how can I create a property named "$var_name" ...
61 votes
13 answers
50k views

How to prevent automatic sort of Object numeric property?

Why I met this problem: I tried to solve an algorithm problem and I need to return the number which appeared most of the times in an array. Like [5,4,3,2,1,1] should return 1. And also when two number ...
-1 votes
1 answer
24 views

I am trying a display items (events) from db typescript nestjs using handlebars the events are an array of object. Properties of each object undefined

please look at the way i am passing the events check for the issue @Get('views/users/events') async findAllEvents( @Req() req: Request, @Res() res: Response, @Query('page') page: number = 1, @Query(...
331 votes
6 answers
387k views

Is there a “not in” operator in JavaScript for checking object properties?

Is there any sort of "not in" operator in JavaScript to check if a property does not exist in an object? I couldn’t find anything about this around Google or Stack Overflow. Here’s a small snippet of ...
0 votes
0 answers
16 views

powershell array of object with dynamic properties outputs only properties from first element [duplicate]

why ? and how to fix this ? how to export to csv file now after export i receive the same as when displaying $res. $res= @() $obj = [PSCustomObject]@{} $obj | Add-Member -MemberType NoteProperty -Name ...
0 votes
2 answers
32 views

Object property has different many string values

I have objects, that has different properties, one of them is programingLanguage. So, with the function, I want to check if the object property - programmingLanguage has a value of "Java". ...
0 votes
4 answers
90 views

How can I write a function that returns the objects in an array that have the two same property values?

Let's say I have the following object: const myObjects = [ { name: "Alice", age: 30 }, { name: "Bob", age: 25 }, { name: "Alice", age: 30 }, { name: "...
0 votes
1 answer
32 views

Explanation on access an object property that does not exist on an DOM element

I am a beginner on JavaScript, looking for a explanation on accessing to an object property that does not exist on an DOM element. I am working on a todo apps. Below is my current code but it is not ...

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