rfprod

#!/bin/bash

#---------------------------------------------------------------
# General instructions.
#---------------------------------------------------------------

# You need to setup iptables firewall, so your machine can connect ONLY
# to specified VPN servers (no other traffic allowed, except local,
# so there will be no "leaks"). Here's a script for that.

rfprod

const lat1 = '-89.99151651';
const lon1 = '42.015332';
const lat2 = '-189.99151651';
const lon2 = '142.015332';
const lat3 = '189.99151651';
const lon3 = '242.015332';

const latRegX = /^(-)?(90(\.[0]+)?|[0-8]{0,1}[0-9](\.\d+)?)$/;
const lonRegX = /^(-)?(180(\.[0]+)?|[1]{0,1}[0-7]{0,1}[0-9](\.\d+)?)$/;

rfprod

Calculator script

Performs mathematical expression evaluation, takes string input, ignores spaces, returns a number, e.g.

• calc('-123') = -123
• calc('-1 +1') = 0
• calc('2 /2+3 * 4.75- -6') = 21.25
• calc('2 / (2 + 3) * 4.33 - -6') = 7.732
• calc('(123.45 * (678.90/(-2.5+11.5)-(((80-(19))) * 33.25))/20)-(123.45* (678.90/(-2.5+11.5)-(((80-(19))) * 33.25))/20)+(13-2)/-(-11)') = 1

A script by V.

rfprod

Messaging App Template [AngularJS Material]

User stories: User can select a Conversation, and see messages inside the Conversation in a separate section to the right of Conversations list. User can post a message to the selected Conversation (this information is stored locally and is discarded on the page reload). User can use markdown for message text formatting.

A Pen by V on CodePen.

License.

rfprod

Custom Events

Rules

• an event object has subscribe and unsubscribe methods to add and remove handlers
• subscribe and unsubscribe are able to take an arbitrary number of arguments and tolerate invalid arguments (not functions, or for unsubscribe, functions which are not subscribed) by skipping them
• multiple subscription of the same handler is allowed, and in this case unsubscription removes the last subscription of the same handler
• an event object has an emit method which must invoke all the handlers with the arguments provided
• emit uses its own invocation context as handers' invocation context
• the order of handlers invocation matches the order of subscription

rfprod

American Soundex

Soundex description

American Soundex description

Rules

1. Save the first letter. Remove all occurrences of h and w except first letter.
2. Replace all consonants (include the first letter) with digits as follows:

rfprod

Voximplant Scenarios

Example Voximplant scenarios.

Docs

• Voximplant > Docs

• Voximplant > Getting Started

• Quickstart > Managing Calls

• Appengine > App Events

rfprod

Text Input Stats

User stories

• User can input text in textarea
• User can see statistics in numerical form on text input beneath textarea: TOTAL number of characters, number of a characters, number of b characters, number of c characters
• User can see numerical statistics visualized with pie chart.

A Pen by V on CodePen.

rfprod

Dartboard Score

The function dartboardScore(x, y) accepts coordinates of thrown dart and returns gained score, e.g.:

Outside of the board: "X"
Bull's eye: "DB"
Bull: "SB"
A single number, example: "10"
A triple number: "T10"
A double number: "D10"

rfprod

Parse Molecule

The function parseMolecule counts the number of atoms of each element contained in the molecule, in a given chemical formula represented by a string, and returns an object.

Sample output for formula H2O: {H: 2, O: 1}

A script by V.

License.