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How to show the “Are you sure you want to navigate away from this page?” when changes committed?
...sider displaying a custom message to be a security hazard and it has therefore been removed from all of them. Browsers now only display generic messages. Since we no longer have to worry about setting the message, it is as simple as:
// Enable navigation prompt
window.onbeforeunload = function() {
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How to determine when Fragment becomes visible in ViewPager
Problem: Fragment onResume() in ViewPager is fired before the fragment becomes actually visible.
26 Answers
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What is the difference between 'typedef' and 'using' in C++11?
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All standard references below refers to N4659: March 2017 post-Kona working draft/C++17 DIS.
Typedef declarations can, whereas alias declarations cannot, be used as initialization statements
But, with the first two non-template examples, are
there any other subtle differences in the standard...
Best way in asp.net to force https for an entire site?
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Please use HSTS (HTTP Strict Transport Security)
from http://www.hanselman.com/blog/HowToEnableHTTPStrictTransportSecurityHSTSInIIS7.aspx
<?xml version="1.0" encoding="UTF-8"?>
<configuration>
<system.webServer>
<rewrite>
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What is the maximum possible length of a .NET string?
What is the longest string that can be created in .NET? The docs for the String class are silent on this question as far as I can see, so an authoritative answer might require some knowledge of internals. Would the maximum change on a 64-bit system?
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Compare if two variables reference the same object in python
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That’s what is is for: x is y returns True if x and y are the same object.
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Why are nested weights bad for performance? Alternatives?
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Nested weights are bad for performance because:
Layout weights require a widget to be measured twice. When a
LinearLayout with non-zero weights is nested inside another
LinearLayout with non-zero weights, then the number of measurements
in...
Angular HttpPromise: difference between `success`/`error` methods and `then`'s arguments
According to AngularJS doc , calls to $http return the following:
6 Answers
6
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SVG gradient using CSS
...t somewhere in your SVG.
Here is a complete example:
rect {
cursor: pointer;
shape-rendering: crispEdges;
fill: url(#MyGradient);
}
<svg width="100" height="50" version="1.1" xmlns="http://www.w3.org/2000/svg">
<style type="text/css">
rect{fill:url(...