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Get value from JToken that may not exist (best practices)
...'t work if jToken is null, but that's not what the question asked. And you can easily fix that by using the null conditional operator: width = jToken?.Value<double?>("width") ?? 100;.
– svick
Jan 11 '18 at 11:50
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What is this CSS selector? [class*=“span”]
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It's an attribute wildcard selector. In the sample you've given, it looks for any child element under .show-grid that has a class that CONTAINS span.
So would select the <strong> element in this example:
<div class="show-grid">
&...
Best way to show a loading/progress indicator?
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ProgressDialog is deprecated from Android Oreo. Use ProgressBar instead
ProgressDialog progress = new ProgressDialog(this);
progress.setTitle("Loading");
progress.setMessage("Wait while loading...");
progress.setCancelable(false); // disable dismi...
How to format current time using a yyyyMMddHHmmss format?
... so, for all the people that want to use another format, remember that you can always call to:
t := time.Now()
t.Year()
t.Month()
t.Day()
t.Hour()
t.Minute()
t.Second()
For example, to get current date time as "YYYY-MM-DDTHH:MM:SS" (for example 2019-01-22T12:40:55) you can use these methods...
Coding Katas for practicing the refactoring of legacy code
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I don't know of a site that catalogs them directly, but one strategy that I've used on occasion is this:
Find an old, small, unmaintained open source project on sourceforge
Download it, get it to compile/build/run
Read the documentation, get a feel fo...
Alter column, add default constraint
...e the default constraint..it will be a pain in the neck to drop it later because it will have one of those crazy system generated names...see also How To Name Default Constraints And How To Drop Default Constraint Without A Name In SQL Server
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How to do error logging in CodeIgniter (PHP)
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CodeIgniter has some error logging functions built in.
Make your /application/logs folder writable
In /application/config/config.php set $config['log_threshold'] = 1; or use a higher number, depending on how much detail you want in your logs
Use log_message('error', 'Some variable did not conta...
How to fire AJAX request Periodically?
... the page after every 5 seconds. But I want to do it using jQuery and AJAX call. Is it possible?
4 Answers
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Change a column type from Date to DateTime during ROR migration
...hange my column type from date to datetime for an app I am making. I don't care about the data as its still being developed.
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How should I escape commas and speech marks in CSV files so they work in Excel?
... double clicking it. My data may contain commas and speech marks, so I'm escaping those as follows.
5 Answers
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