how to ensure my pos system only print one copy

Imefungwa Ilichapishwa Miaka 4 iliyopita Kulipwa wakati wa kujifungua
Imefungwa Kulipwa wakati wa kujifungua

I need a responsive website. I already have a design for it, I just need it to be built.

i have established a pos system. I want it to print normally when my user has placed a new order. although i have written the code to print once, it print twice for one new order once a while.

Mobile App Development HTML

Kitambulisho cha Mradi: #20072534

Kuhusu mradi

10 mapendekezo Mradi wa mbali Ipo mtandaoni %project.latestActivity_relativeTime|badilisha%

10 wafanyakazi huru wanazabuni wastani wa $153 kwa kazi hii

dreammate0621

Hello! I am a web developer. I have checked your project description. I can build it If you hire me, I am gonna do my best for our project. I guarantee the good result. I will wait for your reply. Thank you.

$155 USD kwa siku 3
(Maoni 25)
5.6
BlackEagle86

Hi, How are you? Hope you are going well! I checked your project carefully, so that i feel very confident in your project because I am talented web and mobile app developer with 6 years experiences. If you give me al Zaidi

$155 USD kwa siku 3
(Maoni 24)
5.5
liwang555

Hi, I have checked your requirements and very interested in your project. I have rich of Mobile app development for over 5 years. *** Here are my experienced section *** Social SDKs(Facebook, Twitter, Admob Zaidi

$155 USD kwa siku 3
(Maoni 1)
1.3
nishesh13

I can help you with your printing issue and also I can contribute to your POS system as I am having 5+ yrs of experience inventory management system.

$70 USD kwa siku 5
(Maoni 0)
0.0