Plan and done for June-04-2017

Источник

What will I learn today?

  1. Make menu hide only on tablet and desktop versions or add input-label to hide JS-function.
  2. Fix quirks in Safari: icons have become too small, everything become a mess on a wide screen.
  3. Fix a masthead height on resolution wider 640px.
  4. Fix an offer body text align for the gift message - now it aligns to center on resolutions less than 570.
  5. Build additional pages - hotels, impression, blog.
  6. Style the form on impression page.
  7. Dive into JS.
  8. Implement form validation.

Done

  1. To arms! Looked through the code of spline drawing example - http://scaledinnovation.com/analytics/splines/aboutSplines.html, it's not complicated but I want to build something even simpler utilizing cubic bezier curve - only one control point for each pair of mouse movement captured points. I have to find the coordinates of that control point and my idea is:

    • to take three points with every event;
    • to calculate distance between these three points;
    • to build auxiliary similar triangle on the base of the segment connecting first two points;
    • to calculate an angle between first and third segments - it's the same angle as in my auxiliary triangle;
    • to find coordinates of the control point.

    Tried different options for calculating control point coordinates (this for example - https://math.stackexchange.com/a/1989113). All I've got is a wavy line with skips. Then I just decided to take every three points and to use middle point as a control point. It works but in a weird way - I've got two twisted lines.

    Finally I've checked what Wes Bos has in the tutorial on Day 8. It's easy! Much easier than I did - just straight lines from one point to another. I overcomplicate things - when I see a task, my approach is sometimes too twisted, too overthinked. Why am I so appealed by complex answers? Have to train, to learn myself to be open to simple solutions first. For example, the task is to implement smooth width increasing/decreasing while drawing in HTML5 canvas depending on the mouse speed. My approach leads to visual steps in line width change. But what I really need is to increament value by one step at a time in a given interval. After the tutorial all is clear and the only thing left is to rebuild from scratch.

    Get the last element of array (from SO - https://stackoverflow.com/a/9050353) by enhancing Array.prototype:

    if (!Array.prototype.last){
  Array.prototype.last = function(){
      return this[this.length - 1];
  };
};