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How to deal with cyclic dependencies in Node.js
...
While node.js does allow circular require dependencies, as you've found it can be pretty messy and you're probably better off restructuring your code to not need it. Maybe create a third class that uses the other two to accomplish what you nee...
What's a simple way to get a text input popup dialog box on an iPhone
...w *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex {
NSString* detailString = textField.text;
NSLog(@"String is: %@", detailString); //Put it on the debugger
if ([textField.text length] <= 0 || buttonIndex == 0){
return; //If cancel or 0 length string the stri...
How to pass a class type as a function parameter
... the types in the method call:
class func invokeService<T>(service: String, withParams params: Dictionary<String, String>, returningClass: T.Type, completionHandler handler: ((T) -> ())) {
// The compiler correctly infers that T is the class of the instances of returningClass
...
How to check if an email address exists without sending an email?
...here are two methods you can sometimes use to determine if a recipient actually exists:
You can connect to the server, and issue a VRFY command. Very few servers support this command, but it is intended for exactly this. If the server responds with a 2.0.0 DSN, the user exists.
VRFY user
You can...
Microsecond timing in JavaScript
... more than 1,000 attempts. Only when I'm trying to do things like load an extra web page, or other, the millisecond accuracy degrades (And I'm able to successfully catch my own degraded accuracy by doing a before-and-after time check, to see if my processing time suddenly lengthened to 1 or more mi...
Get and Set a Single Cookie with Node.js HTTP Server
...eCookies() using:
RegExp.prototype.exec - use regex to parse "name=value" strings
Here's the working example:
let http = require('http');
function parseCookies(str) {
let rx = /([^;=\s]*)=([^;]*)/g;
let obj = { };
for ( let m ; m = rx.exec(str) ; )
obj[ m[1] ] = decodeURIComponent( m[2]...
can we use xpath with BeautifulSoup?
...y from the stream is more efficient than reading the response into a large string first. To do the same with the requests library, you want to set stream=True and pass in the response.raw object after enabling transparent transport decompression:
import lxml.html
import requests
url = "http://www...
live output from subprocess command
...dout.readline, b'') (i.e. the sentinel passed to iter needs to be a binary string, since b'' != ''.
– John Mellor
Apr 12 '15 at 17:58
4
...
Autocomplete applying value not label to textbox
... }
}
);
I think the point is that you can add any extra data field other than just 'label' and 'value'.
I use bootstrap modal and it can be as below:
<div id="modal-form" class="modal fade" aria-hidden="true">
<div class="modal-dialog">
<div class="modal...
Image Greyscale with CSS & re-color on mouse-over?
...rayscale(100%);
/* Chrome 19+ & Safari 6+ */
-webkit-transition: all .6s ease;
/* Fade to color for Chrome and Safari */
-webkit-backface-visibility: hidden;
/* Fix for transition flickering */
}
img.grayscale:hover {
filter: none;
-webkit-filter: grayscale(0%);
}
sv...