Manipulating arrays within objects:
-----code -------
var obj1 = { 'a': ['a','b','c','d'], 'b':['b','d','r','a']}
Object.keys(obj1).forEach(element => {
var position = obj1[element].indexOf(element);
if (position !== -1) {
obj1[element].splice(position, 1);
}});
Result: {
"a": [ "c", "d" ],
"b": [ "d","r"]
}
If you want to remove certain keys, you can search for the index and delete them accordingly.
var object = {
a: ['a', 'b', 'c', 'd'],
b: ['b', 'd', 'r', 'a']
};
Object.keys(object).forEach((key, _, keys) => {
var index;
while ((index = object[key].indexOf(key)) !== -1)
object[key].splice(index, 1);
});
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