[jQuery] How to iterate and manipulate an object

[jQuery] How to iterate and manipulate an object


Is this the only way to iterate through an object?
for ( x in myObject) {
}
and how can you remove an field in an object?
For example:
var obj = {
x1: 1123,
x2: 212,
x3: 123131
};
I want to remove obj.x2 the obj object to end up with:
{ x1: 1123, x3: 123131}
Thanks
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HLS