check if an array containt an object key value code example
Example 1: angular list contains property
vendors.filter(function(vendor){ return vendor.Name === "Magenic" })
Example 2: javascript array contains object
// Works in all browsers
if (array.index(object) !== -1) {
console.log(`my object is in my array`)
}
// ES7 :
if(array.includes(oject)) {
console.log(`my object is in my array`)
}