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![This does not work](https://static.wixstatic.com/media/a27d24_2282d3b275f64203b5a3dd1d5ad7ea8c~mv2.png/v1/fill/w_263,h_108,fp_0.50_0.50,q_95,enc_auto/a27d24_2282d3b275f64203b5a3dd1d5ad7ea8c~mv2.png)
Wang Sibo
- Apr 26, 2020
- 1 min
arrow function
arrow function always points to "this" of this father element
9 views
Wang Sibo
- Apr 25, 2020
- 1 min
Some time padding can affect the size of a div
sometime you can not control the hight of a div, as you has already set a very large padding there
4 views
![Attention: nth-child](https://static.wixstatic.com/media/a27d24_35370d2f87e848d0a09ce834d7fac025~mv2.png/v1/fill/w_263,h_191,fp_0.50_0.50,q_95,enc_auto/a27d24_35370d2f87e848d0a09ce834d7fac025~mv2.png)
Wang Sibo
- Apr 22, 2020
- 1 min
Attention: nth-child
only in this way, you can select the second span
2 views
Wang Sibo
- Apr 9, 2020
- 1 min
Attention:Z-index
Z-index only works on element who has position attribute.
2 views
Wang Sibo
- Mar 28, 2020
- 1 min
Make a 'div' in the middle of a container
you can use margin: auto to achieve this effect. However, you can not use position. I have try this. I you truly need a positioning, you...
5 views
Wang Sibo
- Mar 27, 2020
- 1 min
What is real jquery (Core idea)
Jquery is all about event and funciton. The design idea is basically simply. This is: we use '$' to select an element and choose a type...
2 views
Wang Sibo
- Mar 20, 2020
- 1 min
Main idea of Bootstrap
12 Grids system make the layout of a bootstrap website responsive. The core idea is to manipulate "12 Grids system"
3 views
Wang Sibo
- Mar 20, 2020
- 1 min
knowledge hierarchy or structure
Another things I need to mention: you need a perfect knowledge structure. Knowledge or technolodge are the same. People need it to some...
1 view
Wang Sibo
- Nov 30, 2019
- 1 min
JS prototype, Why?
the most important of prototype is to share and reuse.
4 views
![React's trouble](https://static.wixstatic.com/media/a27d24_839c9c1b998b443aada86ef2396fbdd5~mv2.png/v1/fill/w_263,h_44,fp_0.50_0.50,q_95,enc_auto/a27d24_839c9c1b998b443aada86ef2396fbdd5~mv2.png)
Wang Sibo
- Nov 28, 2019
- 1 min
React's trouble
You need a "Temp" variable and give it to "Set" method, therefore you can set it successfully. Or, you can not change it because the...
4 views
Wang Sibo
- Nov 3, 2019
- 1 min
Some Thoughts about React
01 Simply display some "<div>", whenever you need. Aslo, you can use "map" function to display multiple "<div>". This makes react...
3 views
Wang Sibo
- Nov 3, 2019
- 1 min
Self-study Strategy
I have summaried lots of self-study strategies, there is a common idea. That is "input" and "output" at the same time. Therefore, you can...
4 views
Wang Sibo
- Nov 3, 2019
- 1 min
The value of self-study
There are several reasons that lead to study on my own. 01 Build a solid knowledge structure. 02 Easy to extend and summarise. 03 Keep...
6 views
Wang Sibo
- Oct 24, 2019
- 1 min
Javascript logic flow (How to think)
in a js file, the basic logic is simply By understanding this, it is easy to write a javascript file. First, you need to catch a...
1 view
Wang Sibo
- Oct 10, 2019
- 1 min
Map and Reduce in Javascript
Similarly in no-sql, Map looks like a function but it return a new array for a variable. 用起来很方便 This is designed for lazy people, as they...
4 views
Wang Sibo
- Oct 8, 2019
- 1 min
Programming languages are the "same"
it is not hard to find that, people solve problems in a same way. for example, how could you call your parent class? C# 's solution:...
6 views
Wang Sibo
- Oct 8, 2019
- 1 min
Programming language design obey human mandset
For example, to control the movement of "div" element. You need two thing: 1 define the element (catch by 'id') 2 define the movement...
3 views
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