compute-io / argmax / 9

Committed 9 Jun 2015 - 5:16 coverage: 97.059% (-2.9%) from 100.0%

Build # 9

Build Type

Pull #1

travis-ci

Committed by

kgryte

Commit Message

[UPDATE] dependencies

Pull Request Pull Request #1: Update according to TODO

Run Details

98 of 101 new or added lines in 5 files covered. (97.03%)

99 of 102 relevant lines covered (97.06%)

36.12 hits per line

Source File
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93.75

/lib/accessor.js

'use strict';

/**
* FUNCTION: max( arr, clbk )
*        Computes the maximum value of an array using an accessor.
*
* @param {Array} arr - input array
* @param {Function} [accessor] - accessor function for accessing array values
* @returns {Number[]|Null} maximum value indices
*/
function argmax( arr, clbk ) {
        var len = arr.length,
                max,
                i, v,
                idx;

        if ( !len ) {
                return null;
        }

        max = clbk( arr[ 0 ], 0 );
        idx = [ 0 ];
        for ( i = 1; i < len; i++ ) {
                v = clbk( arr[ i ], i );
                if ( v > max ) {
                        max = v;
                        idx.length = 0;
                        idx.push( i );
                }
                else if ( v === max ) {
                        idx.push( i );
                }
        }

        return idx;
} // end FUNCTION argmax()


// EXPORTS //

module.exports = argmax;

1	'use strict';
2
3	/**
4	* FUNCTION: max( arr, clbk )
5	* Computes the maximum value of an array using an accessor.
6	*
7	* @param {Array} arr - input array
8	* @param {Function} [accessor] - accessor function for accessing array values
9	* @returns {Number[]\|Null} maximum value indices
10	*/
11	function argmax( arr, clbk ) {	3×
12	var len = arr.length,	9×
13	max,
14	i, v,
15	idx;
16
17	if ( !len ) {	9×
18	return null;	3×
19	}
20
21	max = clbk( arr[ 0 ], 0 );	6×
22	idx = [ 0 ];	6×
23	for ( i = 1; i < len; i++ ) {	6×
24	v = clbk( arr[ i ], i );	30×
25	if ( v > max ) {	30×
26	max = v;	18×
27	idx.length = 0;	18×
28	idx.push( i );	18×
29	}
30	else if ( v === max ) {	12×
NEW 31	idx.push( i );	!
32	}
33	}
34
35	return idx;	6×
36	} // end FUNCTION argmax()
37
38
39	// EXPORTS //
40
41	module.exports = argmax;	3×

compute-io / argmax / 9

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