Type coersion not done for -1 in .eq

[anonymous]

Test case: ​http://jsfiddle.net/pimvdb/NZdAa/1/

Proposed fix:

eq: function( i ) {
    return +i === -1 ?
        this.slice( i ) :
        this.slice( i, +i + 1 );
},

instead of

eq: function( i ) {
    return i === -1 ?
        this.slice( i ) :
        this.slice( i, +i + 1 );
},

(Notice the extra +.)

[anonymous]

Please see ​http://stackoverflow.com/questions/7939087/understanding-jquerys-eq/7939099#7939099 for further discussion.

[Rick Waldron]

Another perspective on the test case: ​http://jsfiddle.net/rwaldron/NZdAa/4/

patch to follow

[Rick Waldron]

Regardless of whether or not type coercion occurs within this function's body, the documented api says "index" which it defines as an "integer", but not as a string.

​https://github.com/jquery/jquery/pull/568

[anonymous]

Yes, I guess removing type coercion altogether would not be a bad idea.

[Rick Waldron]

The patch fixes coercion support

[Rick Waldron]

Coerce eq() argument all the time. Fixes #10616

Changeset: 7cbd7a640fb6590b0eb7cbedd83a8d46eb553c5a