containsOnly()
/**
* Return true if an array contains only certain elements.
*
* @param {object} arr An array object to check
* @param {function} func A function that performs the check
*/
first()
/**
* Return the first element of an array.
*
* @param {object} arr
*/
formatDay()
/**
* Return day formatted as DD.
*
* @param {object} day Date object.
*/
formatMonth()
/**
* Return MM indexed from 1 as string.
*
* @param {object} month Date object.
*/
formatString()
/**
* Return a formatted string.
*
* @param {object} configObj Three properties are mandatory:
* string - an input string;
* positions - an array of numbers that represent indices;
* insertedChar - a characted to insert at positions
*/
getConnectionString()
/**
* Return connection string for MSSQL DB.
*
* @param {object} infoObj Object with user, password, server, and database
* properties.
*/
getEnv()
/**
* Return value from an env variable.
*
* @param {string} envVarName Env variable name.
*/
getEnvWithoutLang()
/**
* Return environment part of a string ('dev-cz' => 'dev').
*
* @param {string} envVarName Env variable name.
*/
getLang()
/**
* Return language part of a string ('dev-cz' => 'cz').
*
* @param {string} envVarName Env variable name.
*/
isEqual()
/**
* Return true if given arrays are equal, e.i. have the same members in the
* same order.
*
* @param {object} arr
* @param {object} arr1
*/
isStrictlyEqual()
/**
* Return true if given arrays are strictly equal, e.i. have the same members
* in the same order.
* @param {object} arr
* @param {object} arr1
*/
last()
/**
* Return the last element of an array.
*
* @param {object} arr
*/
loadJsonFile()
/**
* Synchronously reads and parses a JSON file.
*
* @param {string} filename
* @return {object} Parsed JSON file as an object literal.
*/
loadYamlFile()
/**
* Synchronously reads and parses a YAML file.
*
* @param {string} filename
* @return {object} Parsed YAML file as an object literal.
*/
max()
/**
* Return maximum value from an array.
*
* @param {object} arr
*/
min()
/**
* Return minimum value from an array.
*
* @param {object} arr
*/
networkRequest()
/**
* Request a resource with axios.
*
* @param {object} reqObj Config object
* @return {Promise} Promise object with response.
*/
nth()
/**
* Return nth element of an array.
*
* @param {object} arr
* @param {number} nthEl Default to 0.
* @param {number} indexStyle Indexing, either start with 0 or 1. Default to 0.
*/
pastYyyyMmDd()
/**
* Return past date in YYYY{{separator}}MM{{separator}}DD.
*
* @param {string} separator Default '/'.
* @param {number} daysAgo Default 1.
*/
randInt()
/**
* Return a random integer between min and max inclusive.
*
* @param {number} min
* @param {number} max
*/
randomEmail()
/**
* Generate random email. If len is 0, the part before '@' will be
* missing. If domainStr is '', no domain will be included.
*
* @param {number} len Default 10.
* @param {string} domainStr Default USEFUL_DEFAULT_DOMAIN env variable
* or "inveo.cz".
*/
randomNumberString()
/**
* Generate random number string. If alphabetString is not passed,
* only [0-9] is a considered alphabet.
*
* @param {number} len Default 10.
* @param {string} alphabetString Default [0-9].
*/
randomString()
/**
* Generate random string. If alphabetString is not passed,
* only [a-zA-Z] is a considered alphabet.
*
* @param {number} len Default 10.
* @param {string} alphabetString Default [a-zA-Z].
*/
sortAsc()
/**
* Return a sorted (asc) array clone.
*
* Sorting does not happen in place. Numeric sorting is performed.
*
* @param {object} arr
*/
sortDesc()
/**
* Return a sorted (desc) array clone.
*
* Sorting does not happen in place. Numeric sorting is performed.
*
* @param {object} arr
*/
yyyyMmDd()
/**
* Return current date in YYYY{{separator}}MM{{separator}}DD.
*
* @param {string} separator Default '/'.
*/