fileExists

Description

Resolves the supposedFileLocation parameter if the parameter points to a existing file. It rejects a NotExistingFileError if file is inexisting.

Parameter List	Returns	Rejection Errors
`supposedFileLocation: string` `tuple: Array (optional)`	`Promise<string \|\| Array>`	`NotExistingFileError` `StringValidationError`
Related Functions	Function Signature
`validateType` `filterResolutionParam`	`function fileExists(supposedString[, tuple]): Promise<string \|\| Array>`

Examples

import {fileExists} from 'puddy-m/lib/fileFunctions' 

 fileExists('path/to/supposed/file')
    .then(supposedfilePath=>console.log(supposedfilePath)) // prints 'path/to/supposed/file'

import {fileExists} from 'puddy-m/lib/fileFunctions' 

 fileExists(true)
    .catch(e=>e)

// Using it with tuple parameter
import {fileExists} from 'puddy-m/lib/fileFunctions' 

 fileExists('path/to/supposed/file', [])
    .then(tuple=>validateString("World", tuple))
    .then(([first, second])=> first + second) // 'path/to/supposed/fileWorld'