can't run the most simple d3.js example code

[Joe Smith]

I copied and pasted the code of the following bar chart example code of d3.js into a index.html file on my computer:
https://bl.ocks.org/mbostock/7322386

However, when I double click the index.html file nothing is shown in the Chrome browser.

I used the Inspector to check the error, and I got the following message as shown in the image:

May I ask why the source of the d3.js library online cannot be accessd?

Thank you!

[Nigel Legg]

Have you downloaded d3.js? The code 

<script src="//d3js.org/d3.v3.min.js"></script>
has it on the local machine.

Cheers, Nigel

mobile 07758 665575

skype: nigellegg

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[Joe Smith]

Thank you, Nigel!

Yes, I've download D3 and the d3.min.js and d3.js files are put in the same folder as the index.html folder.

I found if I change the following code:

<script src="//d3js.org/d3.v3.min.js"></script>
...to this code:
<script src="d3.min.js"></script>
The index.html file will work by showing the bar chart. 

So, I wonder why the D3 library online can't be accessed by the web address as shown in the original code... 

Hope you can advise!
Thank you!

[Jean Mercier]

Hi Joe,

Add http: (http://d3js.org/d3.v3.min.js) and it will work

Best,

Jean

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[Nigel Legg]

Original code does not have a complete web address. 

Cheers, Nigel

mobile 07758 665575

skype: nigellegg

[Joe Smith]

Noted with many thanks, Jean and Nigel!

It works now after adding "http:" to the src part of the code.

[Ian Johnson]

The fix you found is only a temporary solution, you will quickly run into the limitations of running d3 examples from your filesystem (you wont be able to load data using d3.json/csv etc). What you want to do is run a local server like

python -m SimpleHTTPServer

or use something like served: http://enjalot.github.io/served/

Ian Johnson - 周彦

http://enja.org