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Cannot download Docker images behind a proxy
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Now it is returning "Proxy Authentication Required"... how to config username and passoword?
– pinei
Feb 24 '17 at 15:00
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How to take screenshot of a div with JavaScript?
...nt, but what you could do, is draw the quiz results into a canvas element, then use the HTMLCanvasElement object's toDataURL function to get a data: URI with the image's contents.
When the quiz is finished, do this:
var c = document.getElementById('the_canvas_element_id');
var t = c.getContext('2d...
How to check for file lock? [duplicate]
...giving you good advice.
If your code would look like this:
if not locked then
open and update file
Then between the two lines, another process could easily lock the file, giving you the same problem you were trying to avoid to begin with: exceptions.
...
Difference between Covariance & Contra-variance
...existence and direction of assignment compatibility. That is, if X ⇒ Y, then it is also true that IE<X> ⇒ IE<Y>.
If we have two things on either side of a fat arrow, then we can replace both sides with something on the right hand side of a corresponding thin arrow.
A mapping whi...
SET NOCOUNT ON usage
...u are not interested to read value from DONE token. If you read @@ROWCOUNT then you added more bytes to token stream either in form of returnvalue token or as another colmetadata + row tokens!
– Milan Jaric
Aug 1 '19 at 10:02
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How to change a Git remote on Heroku
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Assuming your current remote is named origin then:
Delete the current remote reference with
git remote rm origin
Add the new remote
git remote add origin <URL to new heroku app>
push to new domain
git push -u origin master
The -u will set this up as tra...
How do I create delegates in Objective-C?
...s
- (void)webViewDidStartLoad:(UIWebView *)webView {
// ...
}
@end
Then you could create an instance of MyClass and assign it as the web view's delegate:
MyClass *instanceOfMyClass = [[MyClass alloc] init];
myWebView.delegate = instanceOfMyClass;
On the UIWebView side, it probably has cod...
How do I verify jQuery AJAX events with Jasmine?
...inds of tests.
Here is a sample of how you can fake the AJAX request, and then write a unit test to verify that the faked AJAX request was going to the correct URL:
it("should make an AJAX request to the correct URL", function() {
spyOn($, "ajax");
getProduct(123);
expect($.ajax.mostRe...
Parsing a CSV file using NodeJS
...ined. Is there something I'm missing? When I run npm install csv-parse and then in my code add var parse = require("csv-parse");, then it works. Are you sure yours works? Either way, I love this solution (even if I have to include the csv-parse module
– Ian
May...
Custom Cell Row Height setting in storyboard is not responding
...er applies to Interface Builder/Storyboards. If you select the cell in IB, then the Size Inspector shows Row Height at the top (with a "custom" checkbox), but if you select the whole table view the Size Inspector shows Row Height at the top there too (no "custom" in this case). As pixelfreak says, o...