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feat(helpers): add rangeToNumber method and add range parameters (#1486)
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@ST-DDT
ST-DDT committed Nov 21, 2022
1 parent 7cbeda6 commit 9cd716e
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Showing 15 changed files with 609 additions and 128 deletions.
20 changes: 20 additions & 0 deletions src/modules/helpers/index.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -627,6 +627,26 @@ export class HelpersModule {
return this.fake(res);
}

/**
* Helper method that converts the given number or range to a number.
*
* @param numberOrRange The number or range to convert.
* @param numberOrRange.min The minimum value for the range.
* @param numberOrRange.max The maximum value for the range.
*
* @example
* faker.helpers.rangeToNumber(1) // 1
* faker.helpers.rangeToNumber({ min: 1, max: 10 }) // 5
*
* @since 8.0.0
*/
rangeToNumber(numberOrRange: number | { min: number; max: number }): number {
if (typeof numberOrRange === 'number') {
return numberOrRange;
}
return this.faker.datatype.number(numberOrRange);
}

/**
* Generates a unique result using the results of the given method.
* Used unique entries will be stored internally and filtered from subsequent calls.
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117 changes: 74 additions & 43 deletions src/modules/lorem/index.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -36,7 +36,7 @@ export class LoremModule {
* faker.lorem.word() // 'temporibus'
* faker.lorem.word(5) // 'velit'
* faker.lorem.word({ strategy: 'shortest' }) // 'a'
* faker.lorem.word({ length: { min: 5, max: 7 }, strategy: "fail" }) // 'quaerat'
* faker.lorem.word({ length: { min: 5, max: 7 }, strategy: 'fail' }) // 'quaerat'
*
* @since 3.1.0
*/
Expand All @@ -60,62 +60,71 @@ export class LoremModule {
/**
* Generates a space separated list of words.
*
* @param num The number of words to generate. Defaults to `3`.
* @param wordCount The number of words to generate. Defaults to `3`.
* @param wordCount.min The minimum number of words to generate.
* @param wordCount.max The maximum number of words to generate.
*
* @example
* faker.lorem.words() // 'qui praesentium pariatur'
* faker.lorem.words(10) // 'debitis consectetur voluptatem non doloremque ipsum autem totam eum ratione'
* faker.lorem.words({ min: 1, max: 3 }) // 'tenetur error cum'
*
* @since 2.0.1
*/
words(num: number = 3): string {
const words: string[] = [];
for (let i = 0; i < num; i++) {
words.push(this.word());
}
return words.join(' ');
words(wordCount: number | { min: number; max: number } = 3): string {
wordCount = this.faker.helpers.rangeToNumber(wordCount);

return Array.from({ length: wordCount })
.map(() => this.word())
.join(' ');
}

/**
* Generates a space separated list of words beginning a capital letter and ending with a dot.
* Generates a space separated list of words beginning with a capital letter and ending with a period.
*
* @param wordCount The number of words, that should be in the sentence. Defaults to a random number between `3` and `10`.
* @param wordCount.min The minimum number of words to generate. Defaults to `3`.
* @param wordCount.max The maximum number of words to generate. Defaults to `10`.
*
* @example
* faker.lorem.sentence() // 'Voluptatum cupiditate suscipit autem eveniet aut dolorem aut officiis distinctio.'
* faker.lorem.sentence(5) // 'Laborum voluptatem officiis est et.'
* faker.lorem.sentence({ min: 3, max: 5 }) // 'Fugiat repellendus nisi.'
*
* @since 2.0.1
*/
sentence(wordCount?: number): string {
if (wordCount == null) {
wordCount = this.faker.datatype.number({ min: 3, max: 10 });
}

sentence(
wordCount: number | { min: number; max: number } = { min: 3, max: 10 }
): string {
const sentence = this.words(wordCount);
return `${sentence.charAt(0).toUpperCase() + sentence.slice(1)}.`;
return `${sentence.charAt(0).toUpperCase() + sentence.substring(1)}.`;
}

/**
* Generates a slugified text consisting of the given number of hyphen separated words.
*
* @param wordCount The number of words to generate. Defaults to `3`.
* @param wordCount.min The minimum number of words to generate.
* @param wordCount.max The maximum number of words to generate.
*
* @example
* faker.lorem.slug() // 'dolores-illo-est'
* faker.lorem.slug(5) // 'delectus-totam-iusto-itaque-placeat'
* faker.lorem.slug({ min: 1, max: 3 }) // 'illo-ratione'
*
* @since 4.0.0
*/
slug(wordCount?: number): string {
slug(wordCount: number | { min: number; max: number } = 3): string {
const words = this.words(wordCount);

return this.faker.helpers.slugify(words);
}

/**
* Generates the given number of sentences.
*
* @param sentenceCount The number of sentences to generate. Defaults to a random number between `2` and `6`.
* @param sentenceCount.min The minimum number of sentences to generate. Defaults to `2`.
* @param sentenceCount.max The maximum number of sentences to generate. Defaults to `6`.
* @param separator The separator to add between sentences. Defaults to `' '`.
*
* @example
Expand All @@ -124,39 +133,45 @@ export class LoremModule {
* faker.lorem.sentences(2, '\n')
* // 'Et rerum a unde tempora magnam sit nisi.
* // Et perspiciatis ipsam omnis.'
* faker.lorem.sentences({ min: 1, max: 3 }) // 'Placeat ex natus tenetur repellendus repellendus iste. Optio nostrum veritatis.'
*
* @since 2.0.1
*/
sentences(sentenceCount?: number, separator: string = ' '): string {
if (sentenceCount == null) {
sentenceCount = this.faker.datatype.number({ min: 2, max: 6 });
}
const sentences: string[] = [];
for (sentenceCount; sentenceCount > 0; sentenceCount--) {
sentences.push(this.sentence());
}
return sentences.join(separator);
sentences(
sentenceCount: number | { min: number; max: number } = { min: 2, max: 6 },
separator: string = ' '
): string {
sentenceCount = this.faker.helpers.rangeToNumber(sentenceCount);

return Array.from({ length: sentenceCount })
.map(() => this.sentence())
.join(separator);
}

/**
* Generates a paragraph with at least the given number of sentences.
* Generates a paragraph with the given number of sentences.
*
* @param sentenceCount The minim number of sentences to generate. Defaults to `3`.
* @param sentenceCount The number of sentences to generate. Defaults to `3`.
* @param sentenceCount.min The minimum number of sentences to generate.
* @param sentenceCount.max The maximum number of sentences to generate.
*
* @example
* faker.lorem.paragraph() // 'Non architecto nam unde sint. Ex tenetur dolor facere optio aut consequatur. Ea laudantium reiciendis repellendus.'
* faker.lorem.paragraph() // 'Animi possimus nemo consequuntur ut ea et tempore unde qui. Quis corporis esse occaecati.'
* faker.lorem.paragraph(2) // 'Animi possimus nemo consequuntur ut ea et tempore unde qui. Quis corporis esse occaecati.'
* faker.lorem.paragraph({ min: 1, max: 3 }) // 'Quis doloribus necessitatibus sint. Rerum accusamus impedit corporis porro.'
*
* @since 2.0.1
*/
paragraph(sentenceCount: number = 3): string {
return this.sentences(sentenceCount + this.faker.datatype.number(3));
paragraph(sentenceCount: number | { min: number; max: number } = 3): string {
return this.sentences(sentenceCount);
}

/**
* Generates the given number of paragraphs.
*
* @param paragraphCount The number of paragraphs to generate. Defaults to `3`.
* @param paragraphCount.min The minimum number of paragraphs to generate.
* @param paragraphCount.max The maximum number of paragraphs to generate.
* @param separator The separator to use. Defaults to `'\n'`.
*
* @example
Expand All @@ -176,14 +191,22 @@ export class LoremModule {
* // 'Eos magnam aut qui accusamus. Sapiente quas culpa totam excepturi. Blanditiis totam distinctio occaecati dignissimos cumque atque qui officiis.<br/>
* // Nihil quis vel consequatur. Blanditiis commodi deserunt sunt animi dolorum. A optio porro hic dolorum fugit aut et sint voluptas. Minima ad sed ipsa est non dolores.'
*
* faker.lorem.paragraphs({ min: 1, max: 3 })
* // 'Eum nam fugiat laudantium.
* // Dignissimos tempore porro necessitatibus commodi nam.
* // Veniam at commodi iste perferendis totam dolorum corporis ipsam.'
*
* @since 2.0.1
*/
paragraphs(paragraphCount: number = 3, separator: string = '\n'): string {
const paragraphs: string[] = [];
for (paragraphCount; paragraphCount > 0; paragraphCount--) {
paragraphs.push(this.paragraph());
}
return paragraphs.join(separator);
paragraphs(
paragraphCount: number | { min: number; max: number } = 3,
separator: string = '\n'
): string {
paragraphCount = this.faker.helpers.rangeToNumber(paragraphCount);

return Array.from({ length: paragraphCount })
.map(() => this.paragraph())
.join(separator);
}

/**
Expand All @@ -202,8 +225,6 @@ export class LoremModule {
*/
text(): string {
const methods: Array<keyof LoremModule> = [
'word',
'words',
'sentence',
'sentences',
'paragraph',
Expand All @@ -220,6 +241,8 @@ export class LoremModule {
* Generates the given number lines of lorem separated by `'\n'`.
*
* @param lineCount The number of lines to generate. Defaults to a random number between `1` and `5`.
* @param lineCount.min The minimum number of lines to generate. Defaults to `1`.
* @param lineCount.max The maximum number of lines to generate. Defaults to `5`.
*
* @example
* faker.lorem.lines()
Expand All @@ -232,12 +255,20 @@ export class LoremModule {
* // 'Soluta deserunt eos quam reiciendis libero autem enim nam ut.
* // Voluptate aut aut.'
*
* faker.lorem.lines(2)
* // 'Quod quas nam quis impedit aut consequuntur.
* // Animi dolores aspernatur.'
*
* faker.lorem.lines({ min: 1, max: 3 })
* // 'Error dolorem natus quos eum consequatur necessitatibus.'
*
* @since 3.1.0
*/
lines(lineCount?: number): string {
if (lineCount == null) {
lineCount = this.faker.datatype.number({ min: 1, max: 5 });
}
lines(
lineCount: number | { min: number; max: number } = { min: 1, max: 5 }
): string {
lineCount = this.faker.helpers.rangeToNumber(lineCount);

return this.sentences(lineCount, '\n');
}
}

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