I want to append all elements in an object dynamically to a FormData object. How is this possible?
I don't want to append everything manually.
var myFd = new FormData();
myFd.append('user', dataObj.user);
myFd.append('image', dataObj.image);
...
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2 Answers
Try using for loop:
var myObject = {
'prop1': 'value1',
'prop2': 'value2'
};
var myFd = new FormData();
for(var propertyName in myObject) {
if(myFd.hasOwnProperty(propertyName) == false) {
myFd.append(propertyName, myObject[propertyName]);
}
}
4 Comments
user3475602
Thank you stranger! WebStorm gives me this warning: 'Possible iteration over unexpected (custom / inherited) members, probably missing hasOwnProperty check'. Do I need to be concerned about this?
BenM
@user3475602 No, you don't need to be concerned. It's warning you about private properties.
Salman Arshad
Just add a
hasOwnProperty check.
Jazi
@user3475602 As @SalmanA said, check with
hasOwnProperty if object, to which You appending properites, had those properies earlier. If yes, just don't append them (or do sth else, for example, change name of property).You can use a for in loop:
var myFd = new FormData();
for(var key in dataObj)
{
myFd.append(key, dataObj[key]);
}
