Find a value within array objects and use another value from that object

Question

Can't find a the correct workflow to get the following from looping thro array:

loop thro all the objects within the array and find a specific warehouse value
if the value exists in any object, use that object which holds the specific warehouse value and return a price value within it

For example: If I would do a search for 1374610389 warehouse value I would get returned price of 78.00

var test = [
  {
    lorem: "ipsum",
    dolor: "sit",
    price: "10.00",
    warehouse: 1157964289
  },
  {
    lorem: "ipsum",
    dolor: "sit",
    price: "22.00",
    warehouse: 1269753487
  },
  {
    lorem: "ipsum",
    dolor: "sit",
    price: "78.00",
    warehouse: 1374610389
  },
  {
    lorem: "ipsum",
    dolor: "sit",
    price: "32.00",
    warehouse: 1674985630
  },
  {
    lorem: "ipsum",
    dolor: "sit",
    price: "16.00",
    warehouse: 1847893458
  }
]

Zakaria Acharki · Accepted Answer · 2017-01-18 11:06:17Z

2

The find() method returns a value of the first element in the array that satisfies the provided testing function.

You could use the find method :

test.find(obj => obj.warehouse == '1374610389').price

var test = [
    {
    lorem: "ipsum",
    dolor: "sit",
    price: "10.00",
    warehouse: 1157964289
  },
  {
    lorem: "ipsum",
    dolor: "sit",
    price: "22.00",
    warehouse: 1269753487
  },
  {
    lorem: "ipsum",
    dolor: "sit",
    price: "78.00",
    warehouse: 1374610389
  },
  {
    lorem: "ipsum",
    dolor: "sit",
    price: "32.00",
    warehouse: 1674985630
  },
  {
    lorem: "ipsum",
    dolor: "sit",
    price: "16.00",
    warehouse: 1847893458
  }
]

console.log( test.find(obj => obj.warehouse == '1374610389').price);

answered Jan 18, 2017 at 11:06

Zakaria Acharki

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1 Comment

user663031 Over a year ago

OP said if the value exists in any object, use that object,

Bobby Tables · Accepted Answer · 2017-01-18 11:07:03Z

1

var test = [{
  lorem: "ipsum",
  dolor: "sit",
  price: "10.00",
  warehouse: 1157964289
}, {
  lorem: "ipsum",
  dolor: "sit",
  price: "22.00",
  warehouse: 1269753487
}, {
  lorem: "ipsum",
  dolor: "sit",
  price: "78.00",
  warehouse: 1374610389
}, {
  lorem: "ipsum",
  dolor: "sit",
  price: "32.00",
  warehouse: 1674985630
}, {
  lorem: "ipsum",
  dolor: "sit",
  price: "16.00",
  warehouse: 1847893458
}];
for (var i = 0; i < test.length; i++) {
  if (test[i].warehouse == 1374610389) {
    console.log(test[i].price);
  }
}

Get the length of the array using the length propertie and enumerate over it using a for.

Also check Zakaria Acharki answer, his is way more elegant.

edited Jan 18, 2017 at 11:07

answered Jan 18, 2017 at 11:05

Bobby Tables

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2 Comments

g5wx Over a year ago

one quick question - can i use regex matching with this statement? For example: if warehouse contains first two numbers?

Bobby Tables Over a year ago

@g5wx warehouse is a number and I'd be really surprised to find out that regex work on numbers, but you could do something like test[i].warehouse.toString().match(expr) where expr is your regular expression, but I haven't really used regEx in javascript so not really sure

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