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ES6 with Babel & Grunt

almost 2 years ago | Rocky Jaiswal: Still Learning

The JavaScript ecosystem can get pretty overwhelming at times - multiple build/task runners, numerous transpilers, varied browser/server runtime environments and let's not even talk about frameworks. With ES6 around the c ...

Create PDFs Easily

almost 2 years ago | Eduard Moldovan: eduardmoldovan.com - tech

Most of us developers have had to generate PDF files at some point in time. I recently used a very interesting library and I would like to share my experience about it in a few tutorials.

Cleverly over-ride your Checkboxes and Radio buttons using CSS only!

almost 2 years ago | Aditya Saxena: DesignFrags

With the advent of Web 3.0, HTML/CSS is a tricky game on most occasions. WYSIWYG editors have been making html/css easy much before I started to play around with this stuff. What they don’t offer you, though, is creativity - which I must say, is in abundance at my workplace. One of my oldest pet-peeves with fellow Designers has been their reluctance to learn more about what’s possible to do on the Web. While I don’t judge them for their lack of interest, I’m sure learning a little bit about the Web never hurt anybody. So, anyway, cutting to the chase, they gave me this wonderful piece of design with checkboxes and radio buttons that I knew were not possible just with plain css. Here are some snapshots of the design. Checkboxes Radio Buttons Clearly, the designs are good. But, you’d have to say the checkboxes and radio buttons depicted aren’t those that come out of the box in browsers. Well, relax. There’s no such thing as impossible, and it’s the same here. The trick I learned to customize these boxes is while working with fellow developer at my workplace. Obviously I customized it to an extent to work for me, and so can you. Before proceeding further, if you want to jump into the code right away and ignore my rest of the post, here is the Gist. And here’s the JSBIN Let’s dive into the code right away. My HTML looks quite straightforward: <!-- custom radio button --> <label> <input type="radio" name="sweet-radio" id="sweet-radio-1" value="Yes" checked> <span class="custom-radio-button"> </span> <span>Sweet Radio 1</span> </label> <!-- custom checkbox --> <label> <input type="checkbox" id="sweet-check-2" checked/> <span class="custom-checkbox-button"> </span> <span>Sweet Check 2</span> </label> What we’re trying to do here is replace the existing checkbox’s and radio button’s states: checked and unchecked. We’ll first hide the default radio buttons or checkboxes Replace them (or, rather, their states) with a background-image or in this example’s case, with a Font-Awesome Icon. Notice, that in the Gist, I’ve include font-awesome.css. Without it, this example wouldn’t work. Font-Awesome basically allows me to replace the existing radio/checkboxes with some characters taken from Font-Awesome’s Web Font, which is included in its CSS as @font-face The label tag encloses everything that’s got to do with one radio button or one checkbox and that’s because even if you click on the label, the checkboxes and radio buttons get selected. (a handy trick that increases the UX of any form manifold) The input[type='radio'] & input[type='checkbox'] have two siblings each. The 2nd sibling is a <span> tag that contains the text which needs to be displayed. Most of the magic will happen, though, in these two places: <span class="custom-checkbox-button"></span> and <span class="custom-radio-button"></span> Note: I will be refer to customizing these in Chrome browser. With StackOverflow and Google, it’s never too difficult to get these to work in other browsers as well, that is, if they’re not already working there. My CSS goes like this: body { background-color: #eee; } /** CHECKBOX CSS **/ input[type="checkbox"] { display: none; position: relative; } input[type="checkbox"] + .custom-checkbox-button { margin-right: 11px; position: relative; } input[type="checkbox"] + .custom-checkbox-button:after { color: #cfdaed; display: inline-block; font-family: FontAwesome; font-style: normal; font-weight: normal; line-height: 1; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; content: '\f096'; font-size: 20px; cursor: pointer; } input[type="checkbox"]:checked + .custom-checkbox-button { margin-right: 10px; display: inline-block; } input[type="checkbox"]:checked + .custom-checkbox-button:after { content: '\f14a'; /* This comes from Font Awesome */ color: #1569ad; } /** RADIO BUTTON CSS **/ input[type="radio"] { display: none; position: relative; } input[type="radio"][disabled] + .custom-radio-button:after { cursor: not-allowed; } input[type="radio"][disabled]:checked + .custom-radio-button:after { content: '\f111'; color: #cfdaed; } input[type="radio"]:checked + .custom-radio-button:after { content: '\f058'; color: #1569ad; } input[type="radio"] + .custom-radio-button:after { color: #cfdaed; display: inline-block; font-family: FontAwesome; font-style: normal; font-weight: normal; line-height: 1; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; content: '\f10c'; font-size: 18px; cursor: pointer; } Lets look at the CSS now, point by point First, we hide the default states using display: none; Then, using pseudo CSS for :after tag of the custom <span> implementation, I add some css that styles my custom checkbox or radio button. Alongside these styles, is font-family: FontAwesome; content: '...' For each icon, in Font-Awesome, which I want to use to replace the default behaviour of the checkboxes/radio buttons, I find out the character that the icon uses, and just pull it here. Similarly, I add other icon characters to the checked or the disabled state of the Checkbox/Radio Button. That’s it! Lets take a deep breath and look again what we did. It’s not rocket science, and, once you get the hang of this, you’ll want to do this again and again in your user interfaces just because this looks so neat. Don’t forget to hit me up on Twitter if you like what I do for a living. Cheers!

ggplot – Heat and Pie Chart

almost 2 years ago | Ajay Mittal: R Handbook

HEAT Map In one of my previous ggplot post, I gave some insight on line, point, bar chart. Lets try to generate heat map using ggplot library. To begin with, I am using below libraries ggplot has no special syntax for heatmap, it uses combination of geom_title and scale_fill_gradient to plot heatmap. Lets try to plot simple […]

R : Basic Bar and Pie Chart

almost 2 years ago | Ajay Mittal: R Handbook

Bar Chart Lets take the data frame example from basic line plot.   Group Bar Chart Lets try to plot the group bar chart on 2013, 2014 rainfall from Jan-Dec (rainfall). beside=True play the trick here PIE Chart Lets try to create pie chart with the rainfall data set (rainfall_2014). Try with simple pie chart. Lets try […]

R : Basic Plots

almost 2 years ago | Ajay Mittal: R Handbook

R provide basic Plot command to draw line chart. syntax of plot command is :- Lets try to draw plot with various option Lets try to beautify one of the plot. Apology for bad color choice. Just want to show the usage of color with different options.     Line Symbols We can draw lty with below line […]

Step 2 – Sentiment Analysis using Sentiment Library

almost 2 years ago | Ajay Mittal: R Handbook

Its been long time, I wrote a post on Sentiment Analysis without using Sentiment Package. In this post, I will use Sentiment Package developed by Timothy Jurka. You can download this package from here. Before installing the sentiment package, you need to install tm and Rstem from CRAN. Sentiment package has two functions that server out […]