control-js

Control

Control is an implementation of few of C printf functionality with extended features

testing control-js

git clone https://github.com/zombieleet/control.git

cd control

npm install

export NODE_ENV="development" // linux and OSx

setx %NODE_ENV% development // windows

npm test

how to install

npm install --save control-js

usage

if you can work with c printf or the shell printf functionality, control will be easy

formaters

1. %s "for strings"
2. %d "for digits"
3. %f "for floating point numbers"
4. %u "for unsigned integers"
5. %jn "for json data"
6. %ob "for javascript objects"
7. %bi "for binary numbers"
8. %e or %E "for exponential numbers"
9. %c "for printing single characters"
10. %x or %X "for hexadecimal numbers"
11. %ar "for arrays"

how to use formaters

    const { printf } = require('control-js');
    
    printf("my name is %s", "victory");
    printf("the first letter of my name is %c", "victory");
 

if the number of formters is not equal to the number of replacement strings , an error will be trhwon

 
    const { printf } = require('control-js');
    
    printf("the %s cost %d", "bacon");
 

working with field widths

fieldwidths is the number of space a replacement string should forgo

 
    const { printf } = require('control-js');
 
    printf("the %34s cost dollars %d", "bacon",100);
 

precisions, dataToPrint, number of characters to print

numbers

precision works for the flowing formaters

1. %d
2. %e
3. %f
4. %u

 
    const { printf } = require('control-js');    
 
    printf("%3.22d %.55u %.15e %.2f", 12, -1, 23, 24.56735);
    

data to print

1. %jn
2. %ob
3. %ar

 
    const { printf } = require('control-js');
    
    const obj = {
        firstname:"victory",
        lastname: "osikwemhe",
        country: "nigeria",
        age: 21,
        hobbies: {
            sport: ["soccer","basketball"],
            singing: ["blues"],
            movies: ["action", "war", "horror", "scific"]
        },
        occupation: ["student"]
    };
 
    printf("%.4jn %.2ob %.3ar", JSON.stringify(obj),obj,["sleepy Hollow","The walking dead", "silicon valley", "vikings", "sense8"]);
 

number of characters to print

1. %c
2. %s

    
    const { printf } = require('control-js');
    
    printf("%.4c %.4s", "javascript", "node.js");
    

NOTE

if an invalid replacement string is specified for any formater, an error will be throwed

LICENSE

MIT

GNU ( either version 2 of the License, or at your option any later version. )