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How to pass a user defined argument in scrapy spider
...spider'
def __init__(self, category='', **kwargs):
self.start_urls = [f'http://www.example.com/{category}'] # py36
super().__init__(**kwargs) # python3
def parse(self, response)
self.log(self.domain) # system
Taken from the Scrapy doc: http://doc.scrapy.org/en/...
How to check if a user likes my Facebook Page or URL using Facebook's API
...FB.init({
appId : 'YOUR_APP_ID', // App ID
channelUrl : 'http(s)://YOUR_APP_DOMAIN/channel.html', // Channel File
status : true, // check login status
cookie : true, // enable cookies to allow the server to access the session
xfbml ...
Passing A List Of Objects Into An MVC Controller Method Using jQuery Ajax
...n; charset=utf-8',
dataType: 'json',
type: 'POST',
url: '/Home/PassThings',
data: things,
success: function () {
$('#result').html('"PassThings()" successfully called.');
},
failure: function (response) {
...
Submit a form using jQuery [closed]
...t();
AJAX
$('input#submitButton').click( function() {
$.post( 'some-url', $('form#myForm').serialize(), function(data) {
// ... do something with response from server
},
'json' // I expect a JSON response
);
});
$('input#submitButton').click( function() {
$.aja...
“Single-page” JS websites and SEO
...t will work perfectly fine. Every action you take will request a different URL from the server and the server will render all of the markup for your browser. If you have JavaScript enabled, though, the JavaScript will pick up the already rendered HTML along with a few variables generated by the serv...
send Content-Type: application/json post with node.js
... = require('request');
var options = {
uri: 'https://www.googleapis.com/urlshortener/v1/url',
method: 'POST',
json: {
"longUrl": "http://www.google.com/"
}
};
request(options, function (error, response, body) {
if (!error && response.statusCode == 200) {
console.log(body....
Refresh a page using PHP
...ou need to redirect it to another page, use following:
header("Refresh:0; url=page2.php");
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Convert blob to base64
...
var reader = new FileReader();
reader.readAsDataURL(blob);
reader.onloadend = function() {
var base64data = reader.result;
console.log(base64data);
}
Form the docs readAsDataURL encodes to base64
...
Converting HTML string into DOM elements? [duplicate]
...l.
var uiHelper = function () {
var htmls = {};
var getHTML = function (url) {
/// <summary>Returns HTML in a string format</summary>
/// <param name="url" type="string">The url to the file with the HTML</param>
if (!htmls[url])
{
...
Best practices to handle routes for STI subclasses in rails
... < Contact
def self.model_name
Contact.model_name
end
end
Now url_for @person will map to contact_path as expected.
How it works: URL helpers rely on YourModel.model_name to reflect upon the model and generate (amongst many things) singular/plural route keys. Here Person is basically s...