Parse CSV records in to an array of objects in JavaScript
I'm new to JS and not much exp in Regex to play with string manipulation. Here is my CSV file with records in tabular form with the first line as headers and from on next line the values will be...
View ArticleFileReader.readAsArrayBuffer handling of non-ASCII including £ (pound sterling)
I am using FileReader.readAsArrayBuffer(file) and converting the result into a Uint8Array.If the text file input contains a pound sterling sign (£), then this single character results in two byte...
View ArticleJavascript Promises with FileReader()
I have the following HTML Code:<input type='file' multiple>And Here's my JS Code:var inputFiles = document.getElementsByTagName("input")[0];inputFiles.onchange = function(){ var fr = new...
View ArticleConvert Blob to image url and use in image src to display image
How to convert blob to base64/image? I am getting this blob through API call and I am trying to display it in a image. I have tried with stackoverflow answers but nothing could help so I just tried...
View ArticleHow do I read the first N bytes of a file from an HTML File input?
SituationSay the user may upload a file on a web page, that usually is of a big size (minimum 80 MB, can be way more), and of a specific type, say, for example, PDF.Considering these are huge files, we...
View ArticleReading a 92 byte CSV file takes 15–20 seconds to process [closed]
I'm working on an Angular app and trying to read and parse a simple CSV file that is only 92 bytes.Surprisingly, the upload and processing takes around 15 to 20 seconds, even for such a tiny...
View ArticleHow to parse Excel (XLS) file in Javascript/HTML5
I am able to read Excel file via FileReader but it outputs text as well as weird characters with it. I need to read xls file row-wise, read data in every column and convert it to JSON. How to read xls...
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