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Questions - arrays

How do I filter through an array and return the values in that array that match a user input?

I have an HTML file with an input and a button element in the body that looks like this: <input type="text" name="searchBar" id="searchBar"> <button onclick=&quo...
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Jorge Guiragossian

javascript

arrays

javascript-objects

user-input

Votes: 0

Answers: 2

Latest Answer

Do you mean something like this ? const myData = [{name:"John Miller",age:33,location:"Chicago"},{name:"Jane Doe",age:78,location:"Lansing"},{name:"Jamie Stevens",age:21,location:"San Diego"}]; f...
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nanoK

PostgreSQL aggregate over json arrays

I have seen a lot of references to using json_array_elements on extracting the elements of a JSON array. However, this appears to only work on exactly 1 array. If I use this in a generic query, I get ...
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Aserian

arrays

json

postgresql

aggregate-functions

jsonb

Votes: 0

Answers: 1

Latest Answer

Use the function for orders->'items' to flatten the data: select elem->>'name' as name, (elem->>'price')::numeric as price from my_table cross join jsonb_array_elements(orders->'item...
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klin

JSON file array discord.js

i want the user when take the role , the bot send to him 1 line from the lines in json file but it send all lines i just want in order one by one like if he take the role first time the bot send uncle...
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Mark1233

node.js

arrays

discord.js

Votes: 0

Answers: 1

Latest Answer

You can pick the first element of the array like this: msgsJson.name[0] As arrays start at 0. You can also pick a random one like so: msgsJson.name[Math.floor(Math.random()*msgsJson.name.length)]; I...
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codingmaster398

Computed property to sum numeric arrays in Swift

Task from book says: without calling reduce(_: _:) method, sum sequences of numbers by adding a computed property called sum. You should be able to use it like this: [3, 7, 7].sum // 17 [8....
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mairo

arrays

swift

computed-properties

protocol-extension

protocol-inheritance

Votes: 0

Answers: 1

Latest Answer

[1...4].sum is working on an Array of ClosedRange ([...] mean "Array of..."). You meant: (1...4).sum. You also mean: var sum: Element { ... } rather than Any. If you want to make it even...
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Rob Napier

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