What's a good way to check if a cookie exist in JavaScript?
What's a good way to check if a cookie exist using Javascript? The cookie is available to Javascript via document.cookie So the easiest method is to write a function that checks with document.cookie and return
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JavaScriptClone a sqlalchemy db object with new primary key
At many points, a developer may want to clone a row of data for multiple reason. TheSQL Alchemy makeit easy to do in 5 steps. For example we have a table products and clone the product with id 25.
Introduction to Angular JS
Angular JS is a framework in JavaScript. It is distributed as a JavaScript file and could be included in any HTML page with script tag. <script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.7.2/angular.min.js"></script> The angular JS extends the HTMLwith directives. The key directives are ng-app which defines the AngularJS application, the ng-model directive which bids value of HTML controls like input widgets to the app and ng-bind binds application data to the HTML.
Python - Delete item from array by its value
Often we encounter the situation where we need to remove item from array by value. For example, if we have an array [23, 1, 54, 32, 34, 8, 23]. We don't know or we are not sure about the index of the value 32, but we need to delete it. Python array has the built in function remove. For example
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AngularJS Services - The singleton data and code sharing method
Angular services are used to organize code across the application and are wired together using Dependancy Injection. Angular services are lazily instantiated, i.e, they are instantiated only when an application component depends on it.They are singletons, ie there will be only one instance exists for the app and the components depending on the service gets the reference to the service.
Basics of object orientation and inheritance in perl
Perl is an object oriented language. Perl has packages(class) that could be instanciated and used. At first, we need to decide the file namefor the package ans the perl class name carries the file name. For example, a package Student should be in the file Student.pm. If it shouldbe called Bright::Student, it should be saved asBright/Student.pm, ie Student.pm in a directory named Bright. There is no formal relationship between directory name and modules. That is just grouping for convenience.
Obtaining statistics for Net::FTP transfers
With Net:FTP for uplink and downlink file transfers, we may have problems with obtaining the same statistics that are provided by ftp when you perform a manual transfer, i.e file size, transfer duration and transfer speed in KBs. The easiest solution is to print the $ftp->message; It contain some message. For example,
The New (computer) Testament
In 2007, I have translated apoetry about computers and posted on perl monks for fun. Just copy pasting it here, just for fun.
Configure Amazon S3 for Mezzanine - a Django Blog engine
Amazon S3 is an efficient static file storage system for its services and relatively cheap. On the other hand Django is a nice web development framework that doesn't like to handle static files. Mezzanine is a popular blog engine built in Django. Since Django doesn't like to handle static files on production systems, we always have to configure a web server like nginx or apache webserver to serve static files. On the other hand, its easy to host static files to Amazon S3. The S3 configuration for static files is easy, but saving user uploaded files for Django web app may raise some permission issues. Here is how we have configured the Django-S3-Mezzanine blog.
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