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Checking the compliance of the key in the object regardless of its capitalization

Specified key: 'mykey'

And the object is given: Object {Mykey: "some value", ...}

And using the following syntax if (key in myObject)

to check the match ...

How can I check matching strings regardless of uppercase letters?

For example: the key mykey

must be mapped to mykey

in the object, even if a capital letter M

.

I am aware of a function for this: How are Javascript objects capitalized keys?

I was looking if there is another way.

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2 answers


You can create a function that does this, there is no native case insensitive way to check if a key is in an object

function isKey(key, obj) {
    var keys = Object.keys(obj).map(function(x) {
        return x.toLowerCase();
    });

    return keys.indexOf( key.toLowerCase() ) !== -1;
}


used as

var obj    = {Mykey: "some value"}
var exists = isKey('mykey', obj); // true
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follow this example

var myKey = 'oNE';
var text = { 'one' : 1, 'two' : 2, 'three' : 3};
for (var key in text){
if(key.toLowerCase()==myKey.toLowerCase()){
//matched keys
    console.log(key)
}else{
//unmatched keys
    console.log(key)
}

}


JavaScript: case insensitive search

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