as-table.js - Code Metrics - Inspection of "update desc" - xpl/as-table - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( 7773f0...48aa77 )

by Vitaly

created 2017-07-23 19:12 UTC

as-table.js A

↳ Parent: Project

Complexity

Total Complexity	31
Complexity/F	1.29

Size

Lines of Code	87
Function Count	24

Duplication

Duplicated Lines	0
Ratio	0 %

Importance

Changes	1
Bugs	0	Features	0

Metric	Value
cc	0
c	1
b	0
f	0
nc	1
dl	0
loc	87
rs	9.8
wmc	31
mnd	2
bc	2
fnc	24
bpm	0.0833
cpm	1.2916
noi	3

1 Function

Rating	Name	Duplication	Size	Complexity
A	➔ ???	0	1	1

"use strict";

const

{ first, strlen } = require ('printable-characters'), // handles ANSI codes and invisible characters

limit = (s, n) => (first (s, n - 1) + '…'),

max = (a, b) => (a === undefined) ? b : ((b === undefined) ? a : Math.max (a, b)),

arrmax = (a, b) => a.length > b.length ? a : b,


asColumns = (rows, cfg_) => {

    const

        zip = (arrs, f) => arrs.reduce ((a, b) => b.map ((b, i) => [...a[i] || [], b]), [])
                               .map (args => f (...args)),

        //dasd = zip ([[1,2,3], [4,5,6], [7,8,9], [10,11,12]], (...args) => console.log (args)),

    /*  Convert cell data to string (converting multiline text to singleline) */

        cells           = rows.map (r => r.map (c => (c === undefined) ? '' : cfg_.print (c).replace (/\n/g, '\\n'))),

    /*  Compute column widths (per row) and max widths (per column)     */

        cellWidths      = cells.map (r => r.map (strlen)),
        maxWidths       = zip (cellWidths, max),

    /*  Default config     */

        cfg             = Object.assign ({
                            delimiter: '  ',
                            minColumnWidths: maxWidths.map (x => 0),

                            maxTotalWidth: 0 }, cfg_),

        delimiterLength = strlen (cfg.delimiter),

    /*  Project desired column widths, taking maxTotalWidth and minColumnWidths in account.     */

        totalWidth      = maxWidths.reduce ((a, b) => a + b, 0),
        relativeWidths  = maxWidths.map (w => w / totalWidth),
        maxTotalWidth   = cfg.maxTotalWidth - (delimiterLength * (maxWidths.length - 1)),
        excessWidth     = Math.max (0, totalWidth - maxTotalWidth),
        computedWidths  = zip ([cfg.minColumnWidths, maxWidths, relativeWidths],
                            (min, max, relative) => Math.max (min, Math.floor (max - excessWidth * relative))),

    /*  This is how many symbols we should pad or cut (per column).  */

        restCellWidths  = cellWidths.map (widths => zip ([computedWidths, widths], (a, b) => a - b))

    /*  Perform final composition.   */

        return zip ([cells, restCellWidths], (a, b) =>
                zip ([a, b], (str, w) => (w >= 0)
                                            ? (str + ' '.repeat (w))
                                            : (limit (str, strlen (str) + w))).join (cfg.delimiter))
},

asTable = cfg => Object.assign (arr => {

/*  Print arrays  */

    if (arr[0] && Array.isArray (arr[0]))
        return asColumns (arr, cfg).join ('\n')
if (a > 0)
    b = 42;

/*  Print objects   */

    const colNames        = [...new Set ([].concat (...arr.map (Object.keys)))],
          columns         = [colNames.map (cfg.title), ...arr.map (o => colNames.map (key => o[key]))],
          lines           = asColumns (columns, cfg)

    return [lines[0], cfg.dash.repeat (strlen (lines[0])), ...lines.slice (1)].join ('\n')

}, cfg, {

    configure: newConfig => asTable (Object.assign ({}, cfg, newConfig)),
})

module.exports = asTable ({

    maxTotalWidth: Number.MAX_SAFE_INTEGER,
    print: String,
    title: String,
    dash: '-'
})




1			"use strict";
2
3			const
4
5			{ first, strlen } = require ('printable-characters'), // handles ANSI codes and invisible characters
6
7			limit = (s, n) => (first (s, n - 1) + '…'),
8
9			max = (a, b) => (a === undefined) ? b : ((b === undefined) ? a : Math.max (a, b)),
10
11			arrmax = (a, b) => a.length > b.length ? a : b,
			0 ignored issues – show Unused Code introduced 2017-07-23 19:13 UTC by Report Bug Copy Issue Report The constant `arrmax` seems to be never used. Consider removing it. Loading history...
12
13			asColumns = (rows, cfg_) => {
14
15			const
16
17			zip = (arrs, f) => arrs.reduce ((a, b) => b.map ((b, i) => [...a[i] \|\| [], b]), [])
18			.map (args => f (...args)),
19
20			//dasd = zip ([[1,2,3], [4,5,6], [7,8,9], [10,11,12]], (...args) => console.log (args)),
21
22			/* Convert cell data to string (converting multiline text to singleline) */
23
24			cells = rows.map (r => r.map (c => (c === undefined) ? '' : cfg_.print (c).replace (/\n/g, '\\n'))),
25
26			/* Compute column widths (per row) and max widths (per column) */
27
28			cellWidths = cells.map (r => r.map (strlen)),
29			maxWidths = zip (cellWidths, max),
30
31			/* Default config */
32
33			cfg = Object.assign ({
34			delimiter: ' ',
35			minColumnWidths: maxWidths.map (x => 0),
			0 ignored issues – show Unused Code introduced 2017-07-21 20:52 UTC by Report Bug Copy Issue Report The parameter `x` is not used and could be removed. This check looks for parameters in functions that are not used in the function body and are not followed by other parameters which are used inside the function. Loading history...
36			maxTotalWidth: 0 }, cfg_),
37
38			delimiterLength = strlen (cfg.delimiter),
39
40			/* Project desired column widths, taking maxTotalWidth and minColumnWidths in account. */
41
42			totalWidth = maxWidths.reduce ((a, b) => a + b, 0),
43			relativeWidths = maxWidths.map (w => w / totalWidth),
44			maxTotalWidth = cfg.maxTotalWidth - (delimiterLength * (maxWidths.length - 1)),
45			excessWidth = Math.max (0, totalWidth - maxTotalWidth),
46			computedWidths = zip ([cfg.minColumnWidths, maxWidths, relativeWidths],
47			(min, max, relative) => Math.max (min, Math.floor (max - excessWidth * relative))),
48
49			/* This is how many symbols we should pad or cut (per column). */
50
51			restCellWidths = cellWidths.map (widths => zip ([computedWidths, widths], (a, b) => a - b))
52
53			/* Perform final composition. */
54
55			return zip ([cells, restCellWidths], (a, b) =>
56			zip ([a, b], (str, w) => (w >= 0)
57			? (str + ' '.repeat (w))
58			: (limit (str, strlen (str) + w))).join (cfg.delimiter))
59			},
60
61			asTable = cfg => Object.assign (arr => {
62
63			/* Print arrays */
64
65			if (arr[0] && Array.isArray (arr[0]))
66			return asColumns (arr, cfg).join ('\n')
			0 ignored issues – show Coding Style Best Practice introduced 2017-07-21 20:52 UTC by Report Bug Copy Issue Report Curly braces around statements make for more readable code and help prevent bugs when you add further statements. Consider adding curly braces around all statements when they are executed conditionally. This is optional if there is only one statement, but leaving them out can lead to unexpected behaviour if another statement is added later. Consider: if (a > 0) b = 42; If you or someone else later decides to put another statement in, only the first statement will be executed. if (a > 0) console.log("a > 0"); b = 42; In this case the statement `b = 42` will always be executed, while the logging statement will be executed conditionally. if (a > 0) { console.log("a > 0"); b = 42; } ensures that the proper code will be executed conditionally no matter how many statements are added or removed. Loading history...
67
68			/* Print objects */
69
70			const colNames = [...new Set ([].concat (...arr.map (Object.keys)))],
71			columns = [colNames.map (cfg.title), ...arr.map (o => colNames.map (key => o[key]))],
72			lines = asColumns (columns, cfg)
73
74			return [lines[0], cfg.dash.repeat (strlen (lines[0])), ...lines.slice (1)].join ('\n')
75
76			}, cfg, {
77
78			configure: newConfig => asTable (Object.assign ({}, cfg, newConfig)),
79			})
80
81			module.exports = asTable ({
82
83			maxTotalWidth: Number.MAX_SAFE_INTEGER,
84			print: String,
85			title: String,
86			dash: '-'
87			})
88
89
90

xpl / as-table

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as-table.js A

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