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Check if image exists on server using JavaScript?
...
You could use something like:
function imageExists(image_url){
var http = new XMLHttpRequest();
http.open('HEAD', image_url, false);
http.send();
return http.status != 404;
}
Obviously you could use jQuery/similar to perform your HTTP request.
$.get(image_url)
.done(fun...
How are everyday machines programmed?
... of money, but they have C compilers, drivers to work with hardware, etc.
http://www.qnx.com/
http://www.segger.com/cms/embos.html
http://www.microsoft.com/windowsembedded/en-us/campaigns/compact7/default.aspx?WT.srch=1&WT.mc_ID=SEARCH
RTLinux
...
Making a request to a RESTful API using python
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Using requests:
import requests
url = 'http://ES_search_demo.com/document/record/_search?pretty=true'
data = '''{
"query": {
"bool": {
"must": [
{
"text": {
"record.document": "SOME_JOURNAL"
}
},
...
HTTP Error 403.14 - Forbidden - The Web server is configured to not list the contents of this direct
...
i am getting HTTP Error 500.22 - Internal Server Error.
– Bryan Labuschagne
Sep 26 '17 at 8:44
add a comment
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json_encode() escaping forward slashes
...y need to use the JSON_UNESCAPED_SLASHES flag.
!important read before: https://stackoverflow.com/a/10210367/367456 (know what you're dealing with - know your enemy)
json_encode($str, JSON_UNESCAPED_SLASHES);
If you don't have PHP 5.4 at hand, pick one of the many existing functions and modif...
How to parse an RSS feed using JavaScript?
...iting gives:
<?xml version="1.0" encoding="utf-8"?>
<feed xmlns="http://www.w3.org/2005/Atom" xmlns:creativeCommons="http://backend.userland.com/creativeCommonsRssModule" xmlns:re="http://purl.org/atompub/rank/1.0">
<title type="text">How to parse a RSS feed using javascript? ...
Pure JavaScript Send POST Data Without a Form
...eshing the page using only pure JavaScript (not jQuery $.post() )? Maybe httprequest or something else (just can't find it now)?
...
Difference between app.use and app.get in express.js
...nd to any path that starts with /, which are all of them and regardless of HTTP verb used:
GET /
PUT /foo
POST /foo/bar
etc.
app.get(), on the other hand, is part of Express' application routing and is intended for matching and handling a specific route when requested with the GET HTTP verb:
G...
Custom events in jQuery?
...
Take a look at this:
(reprinted from the expired blog page http://jamiethompson.co.uk/web/2008/06/17/publish-subscribe-with-jquery/ based on the archived version at http://web.archive.org/web/20130120010146/http://jamiethompson.co.uk/web/2008/06/17/publish-subscribe-with-jquery/)
...
How to redirect to previous page in Ruby On Rails?
...s like a charm for me. It's just a short cut for
redirect_to(request.env['HTTP_REFERER'])
http://apidock.com/rails/ActionController/Base/redirect_to (pre Rails 3) or http://apidock.com/rails/ActionController/Redirecting/redirect_to (Rails 3)
Please note that redirect_to(:back) is being deprecated...