Sunday, June 2, 2013

This week in js date

Recently, we need to calculate the start and end date of a specific week for a given date. We need to keep in mind that a week might overlap into two consecutive months, two consecutive years.

We have used two javascript functions for this purpose. The getDay() method returns the day of the week (from 0 to 6) for the specified date.

The getDate() method returns the day of the month (from 1 to 31) for the specified date.

We subtracted the getDay value from the getDate function. This returns our start and end date of a specific week.
var curr = new Date;
var firstday = new Date(curr.setDate(curr.getDate() - curr.getDay()));
var lastday = new Date(curr.setDate(curr.getDate() - curr.getDay()+6));


See the book OpenCart 1.4 Template Design Cookbook.
See the book Joomla Mobile Development Beginners Guide




List of my works:

Opencart Extensions:

  1. Product Based Quantity Wise Shipping: Find it here.
  2. OpenSSLCOMMERZ: integrate SSLCOMMERZ with opencart: Find it here.
  3. Fine Search v.1.0 - Improves Opencart search feature to find relevant: Find it here.
  4. Opensweetcaptcha - An easy way to generate attractive captcha for your system!: Find it here.
  5. Custom Field Product - add unlimited custom fields to the product form: Find it here.
  6. Formcaptcha - add captcha on the register page: Find it here.

My Books:

  1. OpenCart 1.4 Template Design Cookbook.
  2. Joomla Mobile Development Beginners Guide

How to pass an array or object into a hidden input field in Javascript

We pass different kind of values through hidden input field in a form. But if we want to pass an array into a hidden field how we will do this. Let's see the steps below:

For example, we have the below input field.
To input an array or an object like post_array, you need to populate the field using the below code block.
$('#data').val(post_array);
This might produce some erroneous behavior in response. Because, hidden input fields normally expects string values. So, to stay safe, it is best to stringify the array or object.

Below code block is safest:
$('#data').val(JSON.stringify(post_array));

On server side, you need to decode your data:

$data = json_decode($_POST['data']);


See the book OpenCart 1.4 Template Design Cookbook.
See the book Joomla Mobile Development Beginners Guide




List of my works:

Opencart Extensions:

  1. Product Based Quantity Wise Shipping: Find it here.
  2. OpenSSLCOMMERZ: integrate SSLCOMMERZ with opencart: Find it here.
  3. Fine Search v.1.0 - Improves Opencart search feature to find relevant: Find it here.
  4. Opensweetcaptcha - An easy way to generate attractive captcha for your system!: Find it here.
  5. Custom Field Product - add unlimited custom fields to the product form: Find it here.
  6. Formcaptcha - add captcha on the register page: Find it here.

My Books:

  1. OpenCart 1.4 Template Design Cookbook.
  2. Joomla Mobile Development Beginners Guide