CODEWITHSUNDEEP
javascriptjquery
khushboo singh
khushboo singh

Reputation: 17

Getting error of Unterminated character class in jQuery

Uncaught SyntaxError: Invalid regular expression: /[/: Unterminated character classUncaught SyntaxError: Invalid regular expression: /[/: Unterminated character class

 // Searching in ListBox
    $('#Search').keyup(function () {
        var valThis = $(this).val().toUpperCase();

        $('#lstDCU > option').each(function () {
            var itemText = $(this).text().toUpperCase();
            ((itemText.search(valThis) != -1) ? $(this).show() : $(this).hide());
        });
    });

Upvotes: 1

Views: 2428

Answers (1)

Arun P Johny
Arun P Johny

Reputation: 388316

Yes, that is a runtime error.

The search() method expects a regex as its parameter, but if you are passing a string it should be escaped for regex special characters like ^, | etc so

if (!RegExp.escape) {
    RegExp.escape = function (value) {
        return value.replace(/[\-\[\]{}()*+?.,\\\^$|#\s]/g, "\\$&")
    };
}

$('#Search').keyup(function () {
    var valThis = RegExp.escape($(this).val().toUpperCase());

    $('#lstDCU > option').each(function () {
        var itemText = $(this).text().toUpperCase();
        ((itemText.search(valThis) != -1) ? $(this).show() : $(this).hide());
    });
});

Demo: Fiddle

Upvotes: 3

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