Incorporate a for loop in Javascript to add a variety of items (object1, object2, and object3) to an array

Question

Incorporate a for loop in Javascript to add a variety of items (object1, object2, and object3) to an array

Currently, I am facing a challenge in my project where I need to fetch data from an open-source API. The issue lies in the fact that the API provides objects that must be grouped into an array named ingredients. These objects are labeled as

strIngredients1, strIngredients2, strIngredients3

, and so on. I am looking for a way to achieve this by utilizing a for loop, but I am unsure of how to proceed.

As of now, I have not attempted any solutions because I am uncertain about the approach to take.

EDIT: To clarify further, let's assume there are three objects named obj1, obj2, and obj3. My goal is to add all of them to a single array called arr. Typically, this would involve manually inserting each object into the array:

// Manual method

var arr = []
var obj1 = {}
var obj2 = {}
var obj3 = {}

arr.push(obj1, obj2, obj3)

However, I aim to accomplish this using a for loop instead. Somewhat similar to the following:


// For Loop

for (let i = 1; i <= 20; i++) {
    arr.push('obj'+i)
}

Unfortunately, this approach only adds strings, not the actual objects. What steps should I take next?

javascript arrays

Answer 1

Answer №1

It seems like you may need additional information, but based on my understanding, the data retrieved from the fetch call appears in this format:

[
  { items: [item1, item2, ... ,itemN] },
  { items: [item1, item2, ... ,itemN] }
]

You are looking to combine all the items into a single array.

const items = [] // store all items here?

If that is the case, you can try the following approach:

const items = []

for(const obj of objArray){
  items.push(...obj[items])
}

This code snippet spreads all the items from each object into the push function, effectively adding every value to your items array. I hope this solution proves useful! If not, please provide more details for further assistance.

Answer 2

It seems like you may need additional information, but based on my understanding, the data retrieved from the fetch call appears in this format:

[
  { items: [item1, item2, ... ,itemN] },
  { items: [item1, item2, ... ,itemN] }
]

You are looking to combine all the items into a single array.

const items = [] // store all items here?

If that is the case, you can try the following approach:

const items = []

for(const obj of objArray){
  items.push(...obj[items])
}

This code snippet spreads all the items from each object into the push function, effectively adding every value to your items array. I hope this solution proves useful! If not, please provide more details for further assistance.

Answer 3

Answer №2

All the necessary variables are contained within 'this'

for (let j = 1; j <= 30; j++) {
    list.push(this['var'+j])
}

Answer 4

All the necessary variables are contained within 'this'

for (let j = 1; j <= 30; j++) {
    list.push(this['var'+j])
}

Answer 5

Answer №3

You have two options:

Option 1:

const arr = []
const obj1 = { a: 1 }
const obj2 = { b: 2 }
const obj3 = { c: 3 }

// nestedObjects needed - to group objects for pushing

const nestedObjects = [obj1, obj2, obj3]

nestedObjects.forEach(o => arr.push(o))

Option 2:

Utilize global context 'this' in a function

function dd() {
  const arr = []
  this.obj1 = { a: 1 }
  this.obj2 = { b: 2 }
  this.obj3 = { c: 3 }

  for (let i = 1; i <= 20; i++) {
        const value = this[`obj${i}`]
        if (value) arr.push(value)
  }
    
}
dd()

If your variables are in the global context, you cannot access them from within a loop

var arr = []
var obj1 = {}
var obj2 = {}
var obj3 = {}

Answer 6

You have two options:

Option 1:

const arr = []
const obj1 = { a: 1 }
const obj2 = { b: 2 }
const obj3 = { c: 3 }

// nestedObjects needed - to group objects for pushing

const nestedObjects = [obj1, obj2, obj3]

nestedObjects.forEach(o => arr.push(o))

Option 2:

Utilize global context 'this' in a function

function dd() {
  const arr = []
  this.obj1 = { a: 1 }
  this.obj2 = { b: 2 }
  this.obj3 = { c: 3 }

  for (let i = 1; i <= 20; i++) {
        const value = this[`obj${i}`]
        if (value) arr.push(value)
  }
    
}
dd()

If your variables are in the global context, you cannot access them from within a loop

var arr = []
var obj1 = {}
var obj2 = {}
var obj3 = {}

Incorporate a for loop in Javascript to add a variety of items (object1, object2, and object3) to an array

Answer №1

Answer №2

Answer №3

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