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How to create a multi-tenant database with shared table structures?
...perforce.com/media/ForcedotcomBookLibrary/Force.com_Multitenancy_WP_101508.pdf
They have 1 huge table w/ 500 string columns (Value0, Value1, ... Value500). Dates and Numbers are stored as strings in a format such that they can be converted to their native types at the database level. There are me...
Can someone give an example of cosine similarity, in a very simple, graphical way?
...alization and TF-IDF: site.uottawa.ca/~diana/csi4107/cosine_tf_idf_example.pdf
– Mike B.
Aug 12 '14 at 10:41
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Download a file by jQuery.Ajax
...ludes many other, 'better UX' examples as well.
$.fileDownload('some/file.pdf')
.done(function () { alert('File download a success!'); })
.fail(function () { alert('File download failed!'); });
Depending on what browsers you need to support you may be able to use https://github.com/eligre...
Saving images in Python at a very high quality
... Good point - DPI is not needed for vector formats like svg, pdf, eps
– spencerlyon2
Mar 12 '19 at 13:32
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How to render and append sub-views in Backbone.js
... is example code lifted from Recipes With Backbone, found on page 42 of my PDF edition:
...
render: function() {
$(this.el).html(this.template());
this.addAll();
return this;
},
addAll: function() {
this.collection.each(this.addOne);
},
addOne: function(model) {
view = new V...
See what process is using a file in Mac OS X
...
lsof | grep myfilename worked for me. I've got a PDF file in my Trash that the system claims is in use. Weirdly lsof claims it's in use by Preview but Preview doesn't seem to be running (eg when I command-tab through the running apps) but Activity Monitor does show it to b...
Convert data.frame column format from character to factor
...tml
R Reference card: http://cran.r-project.org/doc/contrib/Short-refcard.pdf
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Simplest way to serve static data from outside the application server in a Java web application
... I want to load static images that will be shown both on the Web UI and in PDF files generated by the application. Also new images will be added and saved by uploading via the Web UI.
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Which equals operator (== vs ===) should be used in JavaScript comparisons?
...n tremendously. It is an acquired skill. So, let's continue.
Searching the PDF file for === brings me to page 56 of the specification: 11.9.4. The Strict Equals Operator ( === ), and after wading through the specificationalese I find:
11.9.6 The Strict Equality Comparison Algorithm
The comparison x...
Is the order of elements in a JSON list preserved?
...rded passage in ecma-international.org/publications/files/ECMA-ST/ECMA-404.pdf 'The JSON syntax does not define any specific meaning to the ordering of the values. However, the JSON array structure is often used in situations where there is some semantics to the ordering. '
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