javascript check if value exists in object code example
Example 1: how to check if object exists in javascript
if (typeof maybeObject != "undefined") {
alert("GOT THERE");
}
Example 2: search if value exists in object javascript
var exists = Object.keys(obj).some(function(k) {
return obj[k] === "test1";
});
Example 3: check object in array javascript
var obj = {a: 5};
var array = [obj, "string", 5];
array.indexOf(obj) !== -1
Example 4: check if field exists in object javascript
if ('field' in obj) {
}