How to remove "integer" array from object in JavaScript

Question

I got this input

    var input=[ "Axel",
                4,
                4.21,
                { name : 'Bob', age : 16 },
                { type : 'fish', model : 'golden fish' },
                [1,2,3],
                "John",
                { name : 'Peter', height: 1.90}          ];

and the Result must be this one

    [ { name : 'Bob', age : 16 },
      { type : 'fish', model : 'golden fish' },        
      { name : 'Peter', height: 1.90}            ];

are you trying to remove all elements that are not an object? — JasonWilczak
– JasonWilczak, Commented Mar 27, 2015 at 15:29
Look at the answer from Paul below, that should solve your issue. — JasonWilczak
– JasonWilczak, Commented Mar 27, 2015 at 15:40
toretto, there is a fiddle with Paul's answer below, in my comment, that might help you out. — JasonWilczak
– JasonWilczak, Commented Mar 27, 2015 at 18:39

JasonWilczak · Accepted Answer · 2015-03-27 19:12:54Z

2

Using Array.prototype.filter, only keep Objects which are not Arrays

var input = ["Axel",
    4,
    4.21,
    {name: 'Bob', age: 16},
    {type: 'fish', model: 'golden fish'},
    [1, 2, 3],
    "John",
    {name: 'Peter', height: 1.90}
];

input = input.filter(function (e) {
    return (typeof e === 'object') && !Array.isArray(e);
}); /*
[
    {"name": "Bob", "age": 16},
    {"type": "fish", "model": "golden fish"},
    {"name": "Peter", "height": 1.9}
]
*/

edited Mar 27, 2015 at 19:12

JasonWilczak

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answered Mar 27, 2015 at 15:31

Paul S.

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4 Comments

JasonWilczak Over a year ago

posted this 49secs after you :) Just deleted mine and upvoted yours =D

toretto24 Over a year ago

doesnt work ... "TypeError: undefined is not a function"

Paul S. Over a year ago

What browser? May be Array.isArray is not implemented in your browser

JasonWilczak Over a year ago

I created a Fiddle for this. Paul, you needed to set the input variable at the filter line so the variable is updated (I made the edit). I ran this in chrome and ie9, it worked good.

Silfverstrom · Accepted Answer · 2015-03-27 15:33:15Z

0

Try using array filter to remove the unwanted elements. https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/filter

To remove all integers

var filteredList = input.filter(function(val) {
    return isNaN(val);
}):
/*
filteredList is now =
{ name: 'Bob', age: 16 },
{ type: 'fish', model: 'golden fish' },
[ 1, 2, 3 ],
'John',
{ name: 'Peter', height: 1.9 } ]
*/

edited Mar 27, 2015 at 15:33

answered Mar 27, 2015 at 15:27

Silfverstrom

29.5k6 gold badges48 silver badges57 bronze badges

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