I tested the code in 4 browsers, Chromium v25, Google Chrome v27, FireFox v21 and Opera v12.14 an all gave the result UnFollow Follow
. Which browsers are you saying are inconsistent?
Javascript
var dataList = [{
"UserId": 1,
"Name": "John",
"isFollowed": 1
}, {
"UserId": 2,
"Name": "",
"isFollowed": 0
}];
for (i = 0; i < dataList.length; i++) {
console.log(((dataList[i].isFollowed == 0) ? "Follow" : "UnFollow"));
}
On jsfiddle