How to determine if Javascript array contains an object with an attribute that equals a given value?

Question

I have an array like

vendors = [{
    Name: \'Magenic\',
    ID: \'ABC\'
  },
  {
    Name: \'Microsoft\',
    ID: \'DEF\'
  } // and so on... 
];
         


        

Answer 1

Many answers here are good and pretty easy. But if your array of object is having a fixed set of value then you can use below trick:

Map all the name in a object.

vendors = [
    {
      Name: 'Magenic',
      ID: 'ABC'
     },
    {
      Name: 'Microsoft',
      ID: 'DEF'
    }
];

var dirtyObj = {}
for(var count=0;count

Now this dirtyObj you can use again and again without any loop.

if(dirtyObj[vendor.Name]){
  console.log("Hey! I am available.");
}