CODEWITHSUNDEEP
node.jsexpress
Bill
Bill

Reputation: 146

Edit Global array in Express

I want to change one item from array from app locals variable and i am not sure how to do this

Here is what i have set as global

app.locals.products=[{name: 'a',url: '/a' },
    {name: 'b',url: '/b' },
    {name: 'c',url: '/c' },...

I want to edit them and set active product from routes and do something like this

    products:[{name: 'a',url: '/a' active:true}],

But when i do this it will remove all the other items and set only the product the one i wrote. Is there a way to edit just the one i need and leave all the rest unchanged?

Upvotes: 1

Views: 659

Answers (1)

paqash
paqash

Reputation: 2314

You can use the array find function to find a specific item in the products array and edit it.

function setActive(name) {

  var element = products.find(function(product) {
    return product.name === name;
  });

  if (element) {
    element.active = true;
  }
}

This function takes the name variable, checks if it exists in the product array and sets it to active. You might want to throw an exception if it doesn't.

Usage:

setActive('a');

Upvotes: 2

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