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Handling an empty UITableView. Print a friendly message

...import UIKit extension UITableView { func setEmptyMessage(_ message: String) { let messageLabel = UILabel(frame: CGRect(x: 0, y: 0, width: self.bounds.size.width, height: self.bounds.size.height)) messageLabel.text = message messageLabel.textColor = .black messa...
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iOS: how to perform a HTTP POST request?

...nd/or HTTP headers, use NSMutableURLRequest with (void)setHTTPMethod:(NSString *)method (void)setHTTPBody:(NSData *)data (void)setValue:(NSString *)value forHTTPHeaderField:(NSString *)field Send your request in 2 ways using NSURLConnection: Synchronously: (NSData *)sendSynchronousRequest:(NSU...
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How can I check for “undefined” in JavaScript? [duplicate]

...e undefined, then use the typeof operator, which is guaranteed to return a string: if (typeof myVar !== 'undefined') Direct comparisons against undefined are troublesome as undefined can be overwritten. window.undefined = "foo"; "foo" == undefined // true As @CMS pointed out, this has been pa...
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Why would one use nested classes in C++?

... BOX, BAG, CRATE }; Product(ProductType t, ProductBoxType b, String name); // the rest of the class: fields, methods }; One then will call: Product p(Product::FANCY, Product::BOX); But when looking at code completion proposals for Product::, one will often get all the possibl...
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PDO Prepared Inserts multiple rows in single query

...all it once before the loop with sizeof($datafields) and append the result string to $question_marks[] inside the loop. – AVIDeveloper Jun 28 '16 at 7:44  |...
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Test for existence of nested JavaScript object key

...y property keys change (they will), all devs on the project would have to 'string search' the entire codebase. This isn't really a solution to the problem, as it introduces a much bigger problem – Drenai Jan 14 '18 at 11:20 ...
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What are the differences between the urllib, urllib2, urllib3 and requests module?

... How does somebody create a url with an encoded query string using urllib2? It's the only reason I'm using urllib and I'd like to make sure I'm doing everything the latest/greatest way. – Gattster Jan 7 '10 at 8:51 ...
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Error - trustAnchors parameter must be non-empty

...karounds as well, but those have their own side effects which will require extra future maintenance, for no payoff whatsoever. The next-best workaround is to add the row javax.net.ssl.trustStorePassword=changeit to the files /etc/java-9-openjdk/management/management.properties /etc/java-11-open...
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Better way to check variable for null or empty string?

...tion (present and neither empty nor only white space function IsNullOrEmptyString($str){ return (!isset($str) || trim($str) === ''); } share | improve this answer | foll...
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How do I reformat HTML code using Sublime Text 2?

... Ships with Sublime, so no plugin install needed Cons: Doesn't delete extra blank lines Can't handle minified HTML, lines with multiple open tags Doesn't properly format <script> blocks Tag Pros: Supports ST2/ST3 Removes extra blank lines No binary dependencies Cons: Chokes on PH...