How can a specific condition be used to remove an Object from an Array stored in localStorage?

Question

How can a specific condition be used to remove an Object from an Array stored in localStorage?

I've saved some data in localStorage, for example:

$localStorage.recent = [{'id':1,'name':'abc','is_availbale':1},{'id':2,'name':'xyz','is_availbale':1},{'id':3,'name':'pqrs','is_availbale':0}];

There's another array that only contains the IDs of certain people (array_second can only have IDs already present in $localStorage.recent) -

array_second=['3'];

I need to remove the entries from $localStorage.recent that match the IDs in array_second. The expected output is-

$localStorage.recent = [{'id':1,'name':'abc','is_availbale':1},{'id':2,'name':'xyz','is_availbale':1}];

javascript angularjs local-storage

Answer 1

Answer №1

You are simply working with a regular array. The ngstorage library does not offer any extra features in this case.

Consider the following scenario:

$localStorage.recent = $localStorage.recent.filter((person) => {
    return second_array.indexOf(person.id) !== -1;
});

Answer 2

You are simply working with a regular array. The ngstorage library does not offer any extra features in this case.

Consider the following scenario:

$localStorage.recent = $localStorage.recent.filter((person) => {
    return second_array.indexOf(person.id) !== -1;
});

Answer 3

Answer №2

If you're looking for a helpful snippet of code in javascript, then this might be just what you need.

var dataArr = [{'id':1,'name':'John','is_availbale':1},{'id':2,'name':'Sara','is_availbale':1},{'id':3,'name':'Mike','is_availbale':0}];

var toRemove = [1];
for(var j=0; j<dataArr.length; j++){
    if(toRemove[0] == dataArr[j].id){
        dataArr.splice(j, 1);
    }
}

Answer 4

If you're looking for a helpful snippet of code in javascript, then this might be just what you need.

var dataArr = [{'id':1,'name':'John','is_availbale':1},{'id':2,'name':'Sara','is_availbale':1},{'id':3,'name':'Mike','is_availbale':0}];

var toRemove = [1];
for(var j=0; j<dataArr.length; j++){
    if(toRemove[0] == dataArr[j].id){
        dataArr.splice(j, 1);
    }
}

How can a specific condition be used to remove an Object from an Array stored in localStorage?

Answer №1

Answer №2

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