Wise-helper

Usefull functions like getting a random number, printing, and more using simple syntax

• Math.floor(Math.random())-> random(MAX)
• console.log("string") -> print("string")
• random(255) -> Random number between 0-255
• randString(6) -> Random String w/ length 6

<doc version 1.2 last updated 2017-11-22>

install

npm install --save wise-helper

at top of your project file

require('wise-helper');

//ready to go!

Useage

inside of your 'app.js'

require('wise-helper');
var a,b,c,d,e,f,g,h;

a = random( 255 );          // int 0-255
b = random( 10 );           // int 0-10                        
c = randInt( 0, 100 );    // int 0-100
d = randInt( -100, 100 ); // int -100 - 100

//or print like this

print( random(255) );
print( random(10) );

//prints random characters 

//randChar() : ascii 32("space") though 127 ("")
//randChar(Max) : ascii char 0 ("NULL") though Max

e = randChar();             // char a-z A-Z 0-9 ~!#$%^&**()_+_+,./;'[]\<>?:"{}|
f = randChar(99);           // char 0-99 ascii characters
h = randChar(64,90);        // char A-Z


console.log("a: ", a, ", b: ", b, ", c: ", c, ", d: ", d, ", e: ", e, ", f: ", f, ", g: ", g,", h: ", h);

print

print = console.log.bind( console );

random

Name  : random()
--------------------------------------------
Desc  : genrates radnom number
--------------------------------------------
Param : random( intager)
Return: random value between 0 and max
--------------------------------------------
EX    :
var number = random(255);
print(number); // 0 - 255

default no params
 var number = random();
 print(number); // 0 - 100
--------------------------------------------
--------------------------------------------

function random( max ){
    if( max ){
        return randInt(0, max);
    }else{
        max = 100;
        return randInt(0, 100);
    }
}

randomInt

Name  : randInt()
--------------------------------------------
Desc  : generates random numbers
between to values min, max
--------------------------------------------
Param :
Return: randInt(integer,integer)
         randInt(Min,Max)
--------------------------------------------
Long  :returns a sumirandom number
between max and min
--------------------------------------------
--------------------------------------------

function randomInt( min, max ) {
    return Math.floor( Math.random() * ( max - min + 1 ) ) + min;
}

randChar

Name  : randChar()
--------------------------------------------
Param : randChar(Integer, Integer)
Return: Char random between min, max ascii
--------------------------------------------
--------------------------------------------

function randChar( min, max ) {
    if( max && max >=0 ){
        return String.fromCharCode( randInt( min, max ) );
    }else if( min && min >=0 ){
        return String.fromCharCode( randInt( 0, min ) );
    }else{
        return String.fromCharCode( randInt( 32, 127 ) );
    }
}

randString

Name  : randString()
--------------------------------------------
Desc  : genartes random string of n length
--------------------------------------------
Param : randString(intager)
Return: string ( 0-n length) Chars 'A' to '-'
--------------------------------------------
Long  : returns string made up of ascii values
32 - 127 (A to '-') respectivily
exampe output

93nx-./1a

--------------------------------------------
--------------------------------------------


function randString( n ) {
    var string = '';
    for( var i = 0; i < n; i++ ){
        string +=  randChar();
    }
    return string;
}

padding

Name  : padding()
--------------------------------------------
Desc  : returns correct padding for printing
--------------------------------------------
Param : padding(String, Integer)
Return: String
--------------------------------------------
Long  : returns correct padding when
printing out multi line outputs
--------------------------------------------
EX    :
Pad strings START and END.

var start = "START";
var end   = "END";

var out = start + padding( start, 13 ) + ": " + end;

print(out);
--------------------------------------------
--------------------------------------------

function padding(str, padding) {
    if(str) {
        var inputString = str.toString();
        var spacer = '';
        var len = padding - inputString.length;
        if (len < 0) {
            len = 0;
        }
        for (var i = 0; i < len; i++) {
            spacer += ' ';
        }
        return spacer;
    }else{
        console.error("Error : padding()'s first argument is null or undefined.");
        console.error("FIX   : correct uses padding(String, Number).");
    }
}

arrToString

Name  : arrToString()
--------------------------------------------
Desc  : concatnate array to string
--------------------------------------------
Param : arrToString(Array)
Return: String  of A[i] + A[i+1]....A[i+n]
--------------------------------------------
Long  :
EX    :
arrToString(['Alis','#*%','KYLE','1'])
//Alis#*%KYLE1"
arrToString([4,6888,-1,101,2,0])
//'"46888-110120"'
arrToString(['Alis','#*%','KYLE','1'], ' ');
//"Alis #*% KYLE 1"
arrToString([4,6888,-1,101,2,0], ' ')
//"4 6888 -1 101 2 0"
arrToString([4,6888,-1,101,2,0], ', ')
//"4, 6888, -1, 101, 2, 0"
--------------------------------------------
--------------------------------------------

function arrToString( arr, paddingChar){
    if(! paddingChar ) paddingChar = '';

    var joined = '';
    for( var i in arr ){
        if( parseInt( i ) === arr.length - 1 ) {
            joined += arr[ i ];
        }else{
            joined += arr[ i ] + paddingChar;
        }
    }
    return joined;
}