Category: Web Development

Create a curve using the pen tool

Hit escape and select the Selection Tool and selec the curve

Continue reading How to Make a Curved Arrow in Adobe Illustrator

• https://hackernoon.com/6-reasons-why-javascripts-async-await-blows-promises-away-tutorial-c7ec10518dd9
• https://medium.com/@photokandy/es2015-promises-es2017-async-await-f2a060bb38ce
• https://blog.patricktriest.com/what-is-async-await-why-should-you-care/
• https://javascript.info/promise-basics

For Loop

ForEach Function

The forEach() method calls a provided function once for each element in an array, in order.
Note: forEach() does not execute the function for array elements without values.

Map Function

The map() method creates a new array with the results of calling a function for every array element.
The map() method calls the provided function once for each element in an array, in order.
Note: map() does not execute the function for array elements without values.
Note: map() does not change the original array.
https://www.w3schools.com/jsref/jsref_map.asp

Using a named function

Using an anonymous function

Using shorthand pointer notation

Using an array of JSON objects

Using an array of JSON objects

Filter Function

The filter() method creates an array filled with all array elements that pass a test (provided as a function).
Note: filter() does not execute the function for array elements without values.
Note: filter() does not change the original array.
https://www.w3schools.com/jsref/jsref_filter.asp

Using a named function

Using an anonymous function

Using an array of JSON objects

Reduce Function

The reduce() method reduces the array to a single value.
The reduce() method executes a provided function for each value of the array (from left-to-right).
The return value of the function is stored in an accumulator (result/total).
Note: reduce() does not execute the function for array elements without values.
https://www.w3schools.com/jsref/jsref_reduce.asp

Using a named function

Using an anonymous function

Using an array of JSON objects

Get Unique Array of JSON Objects

Sort Array of JSON Objects

Nested JavaScript Map Function and Non-Mutated Copying of Object Raw

Array Methods

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array

If you need to upscale images without losing much quality, this free tool called Let’s Enhance does a pretty amazing job.

Animating elements can be done simply with linear speed. However, you can achieve some very interesting effects using different bezier curves. Many popular easing functions and how to use them can be found at Eastings.net. If that’s not enough, you can play around with creating custom easing functions at Cubic-Bezier.com.

Continue reading CSS Transitions / Animations with Different Easing Functions

In jQuery, if you dynamically add an element to the DOM and want to attach an event handler to it, that’s very easy with the following line of code.

However, if you try to do that with native Javascript, you have to do with by checking for all clicks on the page and only acting on clicks where the click occurred on the element you want to act on.

Obviously that’s no good. One workaround is to put the HTML element in the page somewhere(if that’s possible in your case), then detach and attach it to where you want to dynamically put it, then add an event listener specifically for that element, e.g.

Let’s say you want to mix two songs together with a seamless transition from one song to the other. Or, let’s say you want to strip out sections of a song and create a seamless transition between the sections you like. This can easily be done using the Crossfade Tracks effect in Audacity.

1. Add a new stereo track
2. Paste the second audio song or clip into the new stereo track so you end up with song / audio clip 1 on track 1 and song / audio clip 2 on track 2.
3. Select the sections of both tracks where they overlap and choose Effect > Crossfade Tracks.

Continue reading Blend Two Audio Clips Seamlessly Using Audacity – Cross Fade

Sometimes you may need to a lot of processing in a loop. Each loop may call an asynchronous function, e.g. calling an external URL or writing to a file. If this needs to be done synchronously, you can use the async JavaScript library.

If you’re looking for a quick and easy way to create a video of your photos with custom audio, Slide.ly can do this. Here’s the rundown:

•  Up to 90 custom images / photos
• 1 audio / song  (to use multiple audio files / songs, edit and combine them first, e.g. using Audacity)
• Add custom captions for each photo
• Different themes
• Player is HTML-based, not Flash-based.
• Can make private
• Can’t download video because the end result isn’t a video.
• To make a video of your Slide.ly, record the screen. See instructions. Then upload to YouTube or Vimeo.

If you need something more powerful but still simple, try Wondershare Slideshow Builder.

Just 3 lines of CSS!

See the Pen KvwxXR by Abdullah Yahya (@javanigus) on CodePen.