Syntax error, unrecognized expression: [object HTMLDivElement]input:checkbox[name=]:checked

Question

I try to make a form with jquery 1.11.1, but the checkboxes do not work! which is the syntax error?

$(this + "input[name=''] :checked").each(function() {
totalSum += parseInt($(this).val());
});

you can't use this plus a string as a selector. and remove that space before :checked — Shan Robertson
– Shan Robertson, Commented Nov 25, 2014 at 1:05
[object HTMLDivElement] is the syntax error in the selector. this is a DOM element. What did you expect from concatenating a DOM element with a string? — Felix Kling
– Felix Kling, Commented Nov 25, 2014 at 1:06

Sirko · Accepted Answer · 2014-11-25 01:06:50Z

2

You probably want to use something like this:

$( this ).find( "input[name='']:checked" ).each(function() {
  totalSum += parseInt($(this).val());
});

Using find() you can search for elements, which are descendants of a given element.

Anyway, are you sure you want to search for <input> elements, which have a name attribute set to an empty string? Because that is, what you are currently selecting.

answered Nov 25, 2014 at 1:06

Sirko

74.3k19 gold badges157 silver badges194 bronze badges

Sign up to request clarification or add additional context in comments.

1 Comment

Ismael Miguel Over a year ago

Don't forget about $("input[name='']:checked",this), which is the same as your answer.

alex · Accepted Answer · 2014-11-25 01:09:59Z

0

Just to be different...

var totalSum = $(this)
.find("input[name='']:checked")
.map(function() { return parseInt(this.value, 10); })
.get()
.reduce(function(total, value) { return total + value; }, 0);

answered Nov 25, 2014 at 1:09

alex

492k205 gold badges891 silver badges992 bronze badges

2 Comments

Sirko Over a year ago

What is the purpose of the get()? Which prototype does that come from?

alex Over a year ago

@Sirko Turns it into a real array. It's on jQuery's, as I'm calling it directly on a collection.

Collectives™ on Stack Overflow

Syntax error, unrecognized expression: [object HTMLDivElement]input:checkbox[name=]:checked

2 Answers 2

1 Comment

2 Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

1 Comment

2 Comments

Your Answer

Sign up or log in

Post as a guest

Related