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mhkeller/index.html

Created May 24, 2017 00:54
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broken dbf
Raw
index.html
<body>
<script src="https://wzrd.in/standalone/buffer"></script>
<script src="https://unpkg.com/dbf@latest/dbf.js"></script>
<script src="index.js"></script>
<h2 style="font-family:Helvetica;">Click this to download a broken dbf</h2>
<button onclick="downloadDbf()">download</button>
Raw
index.js
// var dbf = require('dbf')
// var fs = require('fs')
var buf = dbf.structure([
{foo: 'bar', noo: 10},
{foo: 'louie'}
])
function toBuffer (ab) {
var buf = new buffer.Buffer(ab.byteLength)
var view = new Uint8Array(ab)
for (var i = 0; i < buf.length; ++i) {
buf[i] = view[i]
}
return buf
}
/* In Node, this works fine */
// fs.writeFileSync('foo.dbf', toBuffer(buf.buffer));
/* In the browser, something like this doesn't work */
var blob = new Blob(toBuffer(buf.buffer), {type: 'octet/stream'})
var url = window.URL.createObjectURL(blob)
var a = document.createElement('a')
document.body.appendChild(a)
a.href = url
a.download = 'data.dbf'
function downloadDbf (){
a.click()
console.log('here')
window.URL.revokeObjectURL(url)
}
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