[{id:1,price:10},{id:2,price:20}]
How can I update the price to 200 for array of objects of id 2?
var obj = [{id:1,price:10},{id:2,price:20}];
for(var i=0;i<obj.length;i++){
if(obj[i].id == 2){
//what to do here?
}
}
I can proceed with push and splice etc but the challenge is to keep the position too.
You can do:
obj[i].price = 200;
break;
The break will prevent you to continue looping over all the items (since you found the one you were searching for).
Or shorter with Array#forEach():
var obj = [{ id: 1, price: 10 }, { id: 2, price: 20 }];
obj.forEach(function (a) {
if (a.id === 2) {
a.price = 200;
}
});
document.write('<pre>' + JSON.stringify(obj, 0, 4) + '</pre>');
[{id:1,price:10},{id:2,price:20}].forEach(function(a){ (a.id===2) ? a.price=200 : a});
