isnullorempty/test.js

Check if a given object is null or empty

const isNullOrEmpty = require("./index.js");

//I was too lazy to write it properly.
console.log("Constant test:");
console.log(" null      -> %s", isNullOrEmpty(null));
console.log(" undefined -> %s", isNullOrEmpty(undefined));
console.log(" emptyStr  -> %s", isNullOrEmpty(""));
console.log(" emptyArr  -> %s", isNullOrEmpty([]));
console.log(" emptyObj  -> %s", isNullOrEmpty({}));
console.log(" \"abcdef\"  -> %s", isNullOrEmpty("abcdef"));

console.log("\nisNull test:");
console.log(" null      -> %s", isNullOrEmpty.isNull(null));
console.log(" undefined -> %s", isNullOrEmpty.isNull(undefined));
console.log(" emptyStr  -> %s", isNullOrEmpty.isNull(""));
console.log(" emptyArr  -> %s", isNullOrEmpty.isNull([]));
console.log(" emptyObj  -> %s", isNullOrEmpty.isNull({}));
console.log(" \"abcdef\"  -> %s", isNullOrEmpty.isNull("abcdef"));

console.log("\nisEmpty test:");
console.log(" null      -> %s", isNullOrEmpty.isEmpty(null));
console.log(" undefined -> %s", isNullOrEmpty.isEmpty(undefined));
console.log(" emptyStr  -> %s", isNullOrEmpty.isEmpty(""));
console.log(" emptyArr  -> %s", isNullOrEmpty.isEmpty([]));
console.log(" emptyObj  -> %s", isNullOrEmpty.isEmpty({}));
console.log(" \"abcdef\"  -> %s", isNullOrEmpty.isEmpty("abcdef"));

console.log("\nisUndefined test:");
console.log(" null      -> %s", isNullOrEmpty.isUndefined(null));
console.log(" undefined -> %s", isNullOrEmpty.isUndefined(undefined));
console.log(" emptyStr  -> %s", isNullOrEmpty.isUndefined(""));
console.log(" emptyArr  -> %s", isNullOrEmpty.isUndefined([]));
console.log(" emptyObj  -> %s", isNullOrEmpty.isUndefined({}));
console.log(" \"abcdef\"  -> %s", isNullOrEmpty.isUndefined("abcdef"));

console.log("\nisNullOrEmpty test:");
console.log(" null      -> %s", isNullOrEmpty.isNullOrEmpty(null));
console.log(" undefined -> %s", isNullOrEmpty.isNullOrEmpty(undefined));
console.log(" emptyStr  -> %s", isNullOrEmpty.isNullOrEmpty(""));
console.log(" emptyArr  -> %s", isNullOrEmpty.isNullOrEmpty([]));
console.log(" emptyObj  -> %s", isNullOrEmpty.isNullOrEmpty({}));
console.log(" \"abcdef\"  -> %s", isNullOrEmpty.isNullOrEmpty("abcdef"));

console.log("\nisNullOrUndefined test:");
console.log(" null      -> %s", isNullOrEmpty.isNullOrUndefined(null));
console.log(" undefined -> %s", isNullOrEmpty.isNullOrUndefined(undefined));
console.log(" emptyStr  -> %s", isNullOrEmpty.isNullOrUndefined(""));
console.log(" emptyArr  -> %s", isNullOrEmpty.isNullOrUndefined([]));
console.log(" emptyObj  -> %s", isNullOrEmpty.isNullOrUndefined({}));
console.log(" \"abcdef\"  -> %s", isNullOrEmpty.isNullOrUndefined("abcdef"));