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How to filter/search for multiple keys in an object? [closed]

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I have a dynamic array whose length keeps changing
Ex: let array = [1,2]
I have an array of objects, whose length also keeps changing:
let obj = [
{id: 1, value: abc, location: xyz},
{id: 2, value: pqr, location: xyz},
{id: 3, value: rqp, location: xyz}
]
I want to return a final array of objects which has the id of "array" in "obj" i.e
[
{id: 1, value: abc, location: xyz},
{id: 2, value: pqr, location: xyz}
]
Does filter work in this case?

You can use Array.prototype.filter and Array.prototype.includes for this.
obj.filter((item) => array.includes(item.id))

Need to modify javascript array [closed]

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I have an array like this:
0: {id: "GD721OGWRF", quantity: "1", Size: "Medium", Colour: "Red"}
And i need to modify it to have like that:
{id: "GD721OGWRF", quantity: "1", Size: "Medium", Colour: "Red"}

If you need to unwrap the first value, you can destructure it fairly easy. Make sure the variable is a let or var and not a const.
let data = [{ id: "GD721OGWRF", quantity: "1", Size: "Medium", Colour: "Red" }];
[data] = data; // Destructure the first item (unwrap the first result)
console.log(data); // Print the modified object.

Get array of objects from array of objects with specific properties using rxjs angular [closed]

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I have database which is array of objects. It look like this:
export const BIKES: Bike[] = [
{
id: 1,
imgUrl:
'https://cyclingmagazine.ca/wp-content/uploads/2018/10/Krypton_A18_2016_red_ultegra_16_1.jpg',
price: 28000,
discount: 71,
main: true,
shop: 'Canada Bike',
name: 'Argon 18',`
},
{
id: 2,
imgUrl:
'https://cyclingmagazine.ca/wp-content/uploads/2018/03/etap.shadowpsd_2048x.png',
price: 7900,
discount: 41,
main: false,
shop: 'Amazon',
name: 'Aquila Cycles',
}
I want to subscribe to array of objects which will consist of 2 properties 'name' and 'shop' and theirs values.

It can be implemented using Array.map
const result = BIKES.map(({name, shop}) => ({ name, shop }));
console.log(result);
or
const result = BIKES.map((item) => {
return {
name: item.name,
shop: item.shop
};
});
console.log(result);

Convert plain array to Array of objects [closed]

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I have an array like this
let data = ['String1', 'String2', 'String3', 'String4']
I need to convert this array to an array of objects like so:
data = [
{value: 0, label: 'String1'},
{value: 1, label: 'String2'},
{value: 2, label: 'String3'},
{value: 3, label: 'String4'}
]
How to achieve this most elegantly?

Use map():
const arr = ['String1', 'String2', 'String3', 'String4'];
const res = arr.map((label, value) => ({ value, label }));
console.log(res);

How to form JavaScript object array? [closed]

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I want to create a JavasScript array in following format:
var datas = [
{ name: "Peter Pan", location: "peter#pan.de" },
{ name: "Molly", location: "molly#yahoo.com" },
{ name: "Forneria Marconi", location: "live#japan.jp" },
{ name: "Master <em>Sync</em>", location: "205bw#samsung.com" }
];
As I want to create it dynamically, It would be great if I can create an array like that.

You just did it.
But if you mean adding objects one at a time you can do
var datas = [];
and then
newobj = //dynamically created object
datas.push(newobj);

var data = [];
data.push({ name: "Peter Pan", location: "peter#pan.de" },
{ name: "Molly", location: "molly#yahoo.com" },
{ name: "Forneria Marconi", location: "live#japan.jp" },
{ name: "Master <em>Sync</em>", location: "205bw#samsung.com" });
If you are receiving the object from some service, just call data.push(objectName);. You will have array of objects.
Fiddle for you.
http://jsfiddle.net/q69ku/

Have a look at:
How do I create JavaScript array (JSON format) dynamically?
var data = [];
data.push({ name: "Peter Pan", location: "peter#pan.de" });
// ...

data.push({name: "x" location:"y"})

you will need to change this to fit your data results
var arr = [];
var b = 20; // or your data results
for(i=0;i<b;i++){
var obj = {name: "Peter Pan", location: "peter#pan.de"};
arr.push(obj);
}