I am familiar with how html and css work together. I recently looked through some html5 materials demonstrated by an apple and saw that they used html5 / css / javascript. I am at the point where I need to know if javascript should definitely learn; or if I find similar workarounds with CSS3 and HTML5.
Edited to clarify intent:
My goal is to create my own Twitter blog page and some basic animations.
Do I need to learn javascript?
Yes, you should learn Javascript.
No, you do not need to learn Javascript.
Long version:
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