TypeScript random.boolean方法代码示例

const createChannel = () => {
  return {
    id: faker.random.uuid(),
    name: faker.random.word(),
    direct: faker.random.boolean(),
    unseenMessages: faker.random.boolean() ? faker.random.number(30) : 0
  };
};

function modifyReplaceLeet(name: string): string {
    for (let letter in LEET_LANG) {
        if (faker.random.boolean()) {
            let regex = new RegExp(letter, faker.random.boolean() ? "g" : "");
            name = name.replace(regex, LEET_LANG[letter]);
        }
    }
    return name;
}

export function getRandomPerson(options: GetRandomPersonOptions) {
  const opts: GetRandomPersonOptions = options || {};

  opts.maxDateOfBirth = opts.maxDateOfBirth || new Date(Date.now() - MS_IN_YEAR);
  opts.minAge = opts.minAge || 18;
  opts.maxAge = opts.maxAge || 105;
  opts.depth = opts.depth || 0;

  // Generates a family tree...of sorts
  const result: Person = {
    name: faker.name.lastName() + faker.name.firstName(),
    employment: {
      companyName: faker.company.companyName()
    },
    regex: /a/g,
    age: faker.random.number(),
    dateOfBirth: faker.date.past(),
    enrolledToVote: faker.random.boolean(),
  };

  if (opts.depth > 0) {
    result.parents = [
      getRandomPerson({ depth: opts.depth - 1 }),
      getRandomPerson({ depth: opts.depth - 1 })
    ];
  }

  return result;
}

function modifyAddPrefix(name: string, isMale: boolean): string {
    let lengthAvailable = characterConfig.MAX_NAME_LENGTH - name.length;
    if (faker.random.boolean()) {
        const perk = faker.random.objectElement(talentsConfig.PERKS);
        const perkWords = perk.split(/(?=[A-Z])/);
        if (lengthAvailable >= perkWords[0].length) {
            return capitalizeFirstLetter(perkWords[0]) + name;
        }
    }
    if (faker.random.boolean()) {
        const color = faker.commerce.color().replace(/ /g, "");
        if (lengthAvailable >= color.length) {
            return capitalizeFirstLetter(color) + name;
        }
    }
    const prefixes = COMMON_PREFIXES.concat(isMale ? MALE_PREFIXES : FEMALE_PREFIXES).filter(prefix => prefix.length <= lengthAvailable);
    return (prefixes.length > 0 ? faker.random.arrayElement(prefixes) : "") + name;
}

function modifyAddDuplicateLetters(name: string): string {
    let lengthAvailable = characterConfig.MAX_NAME_LENGTH - name.length;
    const duplicationLetters: string[] = _.shuffle(DUPLICATION_LETTERS);
    for (let letter of duplicationLetters) {
        if (lengthAvailable > 0 && faker.random.boolean()) {
            name = name.replace(letter, letter + letter);
            lengthAvailable = characterConfig.MAX_NAME_LENGTH - name.length;
        }
    }
    return name;
}

/** Create the database. */
async function initDb() {

    // Creates the file.
    try {
        await sequelize.authenticate();
        console.log('Connection to the database successful.');
    } catch (error) {
        console.log(`Error while trying to connect to the database: ${error}`);
    }

    // Syncs the model
    try {
        await sequelize.sync({force: true});
        console.log('Database sync sucessful');
    } catch (error) {
        console.log(`Error while trying to sync the model with the database : ${error}`);
    }

    if (process.env.DB_ENV !== 'prod') {
        // Populate the database with fake data
        try {
            let data: IArticle[] = [];
            for (let i = 0; i < 10; i++) {
                data.push({
                    title: faker.commerce.department(),
                    description: faker.lorem.sentence(),
                    content: faker.lorem.sentences(),
                    published: faker.random.boolean(),
                    publishedAt: new Date().toISOString()
                });
            }
            await Article.bulkCreate(data);
            console.log('10 articles successfully inserted.');
        } catch (error) {
            console.log(`Error while trying to insert an article in the database : ${error}`);
        }
    }
}

 return () => faker.random.boolean();