install

$ npm i --save npm_useful_js

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    const {
        isSeven,
        print,
        printTwo,
        isPositive,
        isNegative,
        return200,
        returnSuccess,
        _5k,
        print99Snowflake,
        print99SnowflakeHorizontal,
        yourLocalHostAddress,
        meaningOfRecursion
    } = require("npm_useful_js");
    
    #  be positive :D
    return200(400) // 200
    returnSuccess(404) // 200

    print(isSeven(10)) // false
    print(isSeven(7)) // true

    printTwo() // print 2 in console

    isPositive(5) // true
    isNegative(-5) // true
    
    _5k("nozza") // false
    _5k("mate") // true

    print99Snowflake() // vertical printing
    print99SnowflakeHorizontal() // Horizontal printing
    
    # your localhost address :D 
    yourLocalHostAddress()

    # meaning of recursion [ returns link ]
    meaningOfRecursion()