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JavaScript

Posted by Bryant Feld
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Bryant Feld
Full Stack JavaScript Techdegree Student 26,144 Points

objects, arrays , deleting , adding

is there a way of getting an element from an array , specifically an object, placing it in another array of objects and deleting the copied object from the original array. The array methods return an array containing the object as a result which I am having some trouble manipulating and I am getting strange results/errors in my code that I cannot figure out. I need to be able to access the object itself and place it in another array, any insight would be greatly appreciated, thanks

1 Answer

Michael Liendo
Michael Liendo
15,326 Points
Michael Liendo
Michael Liendo
15,326 Points

The key is to access a property on the object, so...

var originalArr = [obj1,obj2,obj3];
var newArr = [];

//assuming each obj has a 'name' key, and obj1's name value='Michael'
originalArr.forEach(function(val,i,arr) {
    if(val.name ==='Michael') {
        //add it to the new array
        newArr.push(val);

        //delete it from the old array
        originalArr.pop(val);
    }
});

It's definitely worth looking into the lodash and underscore libraries as they have a lot of these collection methods built in.