Code coverage report for src/utils/Utils.ts

# All files / src/utils Utils.ts

100% Statements 64/64
95.83% Branches 23/24
100% Functions 2/2
100% Lines 62/62

    1
    2
    3
    4
    5
    6
    7
    8
    9
    10
    11
    12
    13
    14
    15
    16
    17
    18
    19
    20
    21
    22
    23
    24
    25
    26
    27
    28
    29
    30
    31
    32
    33
    34
    35
    36
    37
    38
    39
    40
    41
    42
    43
    44
    45
    46
    47
    48
    49
    50
    51
    52
    53
    54
    55
    56
    57
    58
    59
    60
    61
    62
    63
    64
    65
    66
    67
    68
    69
    70
    71
    72
    73
    74
    75
    76
    77
    78
    79
    80
    81
    82
    83
    84
    85
    86
    87
    88
    89
    90
    91
    92
    93
    94
    95
    96
    97
    98
    99
    100
    101
    102
    103
    104
    105
    106
    107
    108
    109
    110
    111
    112
    113
    114
    115
    116
    117
    118
    119
    120
    121
    122
    123
    124
    125
    126
    127
    128
    129
    130
    131
    132
    133
    134
    135
    136
    137
    138
    139
    140
    141
    142
    143
    144
    145
    146
    147
    148
    149
    150
    151
    152
    153
    154
    155
    156
    157
    158
    159
    160
    161
    162
    163
    164
    165
    166
    167
    168
    169
    170
    171
    172
    173
    174
    175
    176
    177
    178
    179
    180
    181
    182
    183
    184
    185
    186
    1871x

    1x

    1x

    1x

    1x

    534x

    534x
    2684x

    534x

    732x
    1x

    731x
    17x

    714x

    714x

    714x
    229372x
    229372x

    714x

    531x

    531x
    2679x

    2679x

    531x

    101548x

    101548x

    10x

    10x
    7x

    3x

    10x

    10x

    14687x

    2x

    10987x
    1x

    10986x
    10985x

    10986x

    1x

    6x

    33855x
    33855x

    33855x
    26489x

    7366x
    7366x
    7366x
    7366x

    7366x
    7366x

    7366x
    24636x
    106x

    24530x
    24516x
    24516x

    14x
    14x

    24530x

    7366x

    7366x

     import { JSFuck } from '../enums/JSFuck';

    import { RandomGeneratorUtils } from './RandomGeneratorUtils';

    export class Utils {
        /**
         * @type {string}
         */
        public static readonly hexadecimalPrefix: string = '0x';

        /**
         * @type {Map<string, string>}
         */
        private static readonly stringToUnicodeEscapeSequenceCache: Map <string, string> = new Map();

        /**
         * @param length
         * @return {number[]}
         */
        public static arrayRange (length: number): number[] {
            const range: number[] = [];

            for (let i: number = 0; i < length; i++) {
                range.push(i);
            }

            return range;
        }

        /**
         * @param array
         * @param times
         * @returns {T[]}
         */
        public static arrayRotate <T> (array: T[], times: number): T[] {
            if (!array.length) {
                throw new ReferenceError(`Cannot rotate empty array.`);
            }

            if (times <= 0) {
                return array;
            }

            const newArray: T[] = array;

            let temp: T | undefined;

            while (times--) {
                temp = newArray.pop()!;
                newArray.unshift(temp);
            }

            return newArray;
        }

        /**
         * @param array
         * @return {T[]}
         */
        public static arrayShuffle <T> (array: T[]): T[] {
            const shuffledArray: T[] = [...array];

            for (let i: number = shuffledArray.length; i; i--) {
                const j: number = Math.floor(RandomGeneratorUtils.getMathRandom() * i);

                [shuffledArray[i - 1], shuffledArray[j]] = [shuffledArray[j], shuffledArray[i - 1]];
            }

            return shuffledArray;
        }

        /**
         * @param dec
         * @returns {string}
         */
        public static decToHex (dec: number): string {
            const radix: number = 16;

            return dec.toString(radix);
        }

        /**
         * @param url
         * @returns {string}
         */
        public static extractDomainFromUrl (url: string): string {
            let domain: string;

            if (url.indexOf('://') > -1 || url.indexOf('//') === 0) {
                domain = url.split('/')[2];
            } else {
                domain = url.split('/')[0];
            }

            domain = domain.split(':')[0];

            return domain;
        }

        /**
         * @param number
         * @returns {boolean}
         */
        public static isCeilNumber (number: number): boolean {
            return number % 1 === 0;
        }

        /**
         * @param obj
         * @returns {T}
         */
        public static strEnumify <T extends {[prop: string]: ''|string}> (obj: T): T {
            return obj;
        }

        /**
         * @param string
         * @param times
         * @returns {string}
         */
        public static stringRotate (string: string, times: number): string {
            if (!string) {
                throw new ReferenceError(`Cannot rotate empty string.`);
            }

            for (let i: number = 0; i < times; i++) {
                string = string[string.length - 1] + string.substring(0, string.length - 1);
            }

            return string;
        }

        /**
         * @param string
         * @returns {string}
         */
        public static stringToJSFuck (string: string): string {
            return Array
                .from(string)
                .map((character: string): string => {
                    return JSFuck[character] || character;
                })
                .join(' + ');
        }

        /**
         * @param string
         * @param nonLatinAndNonDigitsOnly
         * @returns {string}
         */
        public static stringToUnicodeEscapeSequence (string: string, nonLatinAndNonDigitsOnly: boolean = false): string {
            const cacheKey: string = `${string}-${String(nonLatinAndNonDigitsOnly)}`;

            if (Utils.stringToUnicodeEscapeSequenceCache.has(cacheKey)) {
                return <string>Utils.stringToUnicodeEscapeSequenceCache.get(cacheKey);
            }

            const radix: number = 16;
            const replaceRegExp: RegExp = new RegExp('[\\s\\S]', 'g');
            const escapeRegExp: RegExp = new RegExp('[^a-zA-Z0-9]');
            const regexp: RegExp = new RegExp('[\\x00-\\x7F]');

            let prefix: string,
                template: string;

            const result: string = string.replace(replaceRegExp, (escape: string): string => {
                if (nonLatinAndNonDigitsOnly && !escapeRegExp.exec(escape)) {
                    return escape;
                }

                if (regexp.exec(escape)) {
                    prefix = '\\x';
                    template = '00';
                } else {
                    prefix = '\\u';
                    template = '0000';
                }

                return `${prefix}${(template + escape.charCodeAt(0).toString(radix)).slice(-template.length)}`;
            });

            Utils.stringToUnicodeEscapeSequenceCache.set(cacheKey, result);

            return result;
        }
    }