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How do you trigger a block after a delay, like -performSelector:withObject:afterDelay:?
...ion of my block for 10 seconds.
dispatch_after(dispatch_time(DISPATCH_TIME_NOW, 10 * NSEC_PER_SEC), dispatch_get_main_queue(), ^{
NSLog(@"parameter1: %d parameter2: %f", parameter1, parameter2);
});
More: https://developer.apple.com/documentation/dispatch/1452876-dispatch_after
...
Using the Swift if let with logical AND operator &&
We know that we can use an if let statement as a shorthand to check for an optional nil then unwrap.
6 Answers
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Get the current year in JavaScript
...which you can use as per the requirements, some functions are as,
var now = new Date()
console.log("Current Time is: " + now);
// getFullYear function will give current year
var currentYear = now.getFullYear()
console.log("Current year is: " + currentYear);
// getYear will give you th...
What's the best way of structuring data on firebase?
I am new to firebase and I want to know what's the best way of structuring data on it.
3 Answers
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Git stash: “Cannot apply to a dirty working tree, please stage your changes”
... words, make a commit (which we will never push) of your current changes. Now that your workspace is clean, pop your stash. Now, commit the stash changes as an amendment to your previous commit. Having done that you now have both sets of changes combined in a single commit ("Fixme"); just reset (...
Filtering Pandas DataFrames on dates
I have a Pandas DataFrame with a 'date' column. Now I need to filter out all rows in the DataFrame that have dates outside of the next two months. Essentially, I only need to retain the rows that are within the next two months.
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When exactly is it leak safe to use (anonymous) inner classes?
...u are actually asking several questions at once. I'll do my best with the knowledge that I have to cover it and, hopefully, some others will join in to cover what I may miss.
Nested Classes: Introduction
As I'm not sure how comfortable you are with OOP in Java, this will hit a couple of basics. A ...
How to correctly iterate through getElementsByClassName
...
for ... of allows you to iterate over NodeList now as in for (slide of slides) Distribute(slide). Browser support is patchy, but if you're transpiling then for ... of will be converted, but NodeList.forEach wouldn't.
– Mr5o1
Oct 22 ...
Convert UTC datetime string to local datetime
... zones:
from_zone = tz.tzutc()
to_zone = tz.tzlocal()
# utc = datetime.utcnow()
utc = datetime.strptime('2011-01-21 02:37:21', '%Y-%m-%d %H:%M:%S')
# Tell the datetime object that it's in UTC time zone since
# datetime objects are 'naive' by default
utc = utc.replace(tzinfo=from_zone)
# Convert ...
Find the number of downloads for a particular app in apple appstore [closed]
...o a market research on specific type of apps. so is there a way for me to know the download count of the app / any app.
4 A...