I need to change the fill color (internal area) in a Line Chart.js when the point is negative.  The code is simple and basic:  $(document).ready(function(){    var ctx = $("#myChart").get(0).getContext("2d");    var data = {       lab...
Does anyone know of a Javascript charting library that can handle huge datasets?  By 'huge', I mean drawing a line graph with around 1,000 lines and 25,000 data points in total. (With an uneven distribution of points per line. A lot of lines...
I have been working on dc and crossfilter js and I currently have a large dataset with 550,000 rows and size 60mb csv and am facing a lot of issues with it like browser crashes etc  So , I'm trying to understand how dc and crossfilter deals with...
Sorry for the somewhat confusing title.  Not sure really how to title this.  My situation is this- I have an academic simulation tool, that I in the process of developing a web front-end for.  While the C++-based simulator is computationally quite ef...
I'm passing a table of up to 1000 rows, consisting of name, ID, latitude and longitude values, to the client.  The list will then be processed by Javascript and converted to markers on a Google map.  I initially planned to do this with JSON, as I...
I have an list of objects, let's call it dataset and I want to split into two new lists, let's call them trainSet and testSet, while reading the input dataset list line by line, where a list object inherits from a node read stream object (in...
I am trying to use:   document.querySelectorAll('[data-r=0 data-c=0]');  to select a specific HTML element but it returns:     Uncaught DOMException: Failed to execute 'querySelectorAll' on 'Document': '[data-r=0 data-c=0]...
I would like to know how I can the data attribute of form select using Vue js. Here is the select      <form method="post">             <select @change="onChange" id="option" class="form-control...
Im having trouble with some javascript in the onFetch step of a dataset in a BIRT report.  I've added logging in the initialise step of the report in a few different ways. The runtime im using is Tivoli Common Reporting, and they supply a logging...
So, currently, I have a bar chart in ChartJS, which uses the database to make price comparisons between different companies for differently-sized items (all items are the same, only the size is different).   The database looked like this:  id, compan...

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