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Linq: GroupBy, Sum and Count
...oint me out to use First() and leave out SelectMany. The ResultLine is actually a ViewModel. The price will get formatted with currency sign. That's why I need it to be a string. But i could change quantity to int.. I'll see now if this may also help for my website. I'll let you know.
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Flatten nested dictionaries, compressing keys
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Basically the same way you would flatten a nested list, you just have to do the extra work for iterating the dict by key/value, creating new keys for your new dictionary and creating the dictionary at final step.
import collectio...
Increment a database field by 1
...r perhaps you're looking for something like INSERT...MAX(logins)+1? Essentially you'd run a query much like the following - perhaps a bit more complex depending on your specific needs:
INSERT into mytable (logins)
SELECT max(logins) + 1
FROM mytable
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What is a StoryBoard ID and how can i use this?
...ould be from any ViewController:
//Maybe make a button that when clicked calls this method
- (IBAction)buttonPressed:(id)sender
{
MyCustomViewController *vc = [self.storyboard instantiateViewControllerWithIdentifier:@"MyViewController"];
[self presentViewController:vc animated:YES completi...
How to not wrap contents of a div?
... This worked for me when other approaches listed above did not. All I needed was display: flex. Didn't need anything else.
– HerrimanCoder
Mar 1 '18 at 13:08
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Perform Segue programmatically and pass parameters to the destination view
in my app I've a button that performs a segue programmatically:
5 Answers
5
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CodeFile vs CodeBehind
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So, does this mean that the developer must manually change the attribute of the Page directive or is there a way to create a web project which selects codebehind or codefile, by default, each time a new web page is added?
– Matt W
No...
How to fight tons of unresolved variables warning in Webstorm?
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All other answers are incorrect for the general case. What if you don't get data as a parameter? You don't have JSDoc then:
function niceApiCall(parameters) {
const result = await ... // HTTP call to the API here
for (c...
Underscore prefix for property and method names in JavaScript
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Welcome to 2019!
It appears a proposal to extend class syntax to allow for # prefixed variable to be private was accepted. Chrome 74 ships with this support.
_ prefixed variable names are considered private by convention but are still public.
This syntax tries to be both terse and int...
Connect to a heroku database with pgadmin
...nd 9.3 and it connects but shows a list of 159 databases with error popups all the time.
– Abhishek
Oct 25 '16 at 16:22
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