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`new function()` with lower case “f” in JavaScript
...er case "f" to define new objects in JavaScript. It seems to work well in all major browsers and it also seems to be fairly effective at hiding private variables. Here's an example:
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How to get the body's content of an iframe in Javascript?
...t try contentWindow.document.
Select elements in iframe
Then you can usually use getElementById() or even querySelectorAll() to select the DOM-Element from the iframeDocument:
if (!iframeDocument) {
throw "iframe couldn't be found in DOM.";
}
var iframeContent = iframeDocument.getElementByI...
Stash just a single file
...to other even more tricky things in the future, remember that:
Stash is really just a very simple alternative to the only slightly more complex branch sets. Stash is very useful for moving things around quickly, but you can accomplish more complex things with branches without that much more headac...
List of remotes for a Git repository?
...
-v for "verbose" is actually the more common option. It's also supported by git branch. The basic difference is short vs long options (single vs double dash, essentially) That said, supporting --list with the remote subcommand would make sense. ...
Detect browser or tab closing
...closed. Also, the onbeforeunload is non-standard, so it's not supported by all browsers.
– Guffa
Oct 8 '10 at 8:45
8
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Difference between thread's context class loader and normal classloader
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Indeed, not all classloaders have a classpath. When wrote "ClassB needs to be on the classpath of the classloader of ClassA", I meant "ClassB needs to loadable by the classloader of ClassA". 90% of the time they mean the same. But if ...
Gson: How to exclude specific fields from Serialization without annotations
... it's almost the same thing as an exclusion annotation as in it applies to all instances of that class. I wanted runtime dynamic exclusion. I some cases I want some fields excluded in order to provide a lighter/restricted response and in others I want the full object serialized
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Double negation (!!) in javascript - what is the purpose? [duplicate]
...ue
null to true
+0 to true
-0 to true
'' to true
NaN to true
false to true
All other expressions to false
Then the other ! negates it again. A concise cast to boolean, exactly equivalent to ToBoolean simply because ! is defined as its negation. It’s unnecessary here, though, because it’s only ...
What is the difference between onPause() and onStop() of Android Activites?
...android/app/Activity.html ,
it said 'Activity comes into foreground' will call onPause() , and 'Activity is no longer visible' will call onStop() .
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What are the relationships between Any, AnyVal, AnyRef, Object and how do they map when used in Java
I usually end up trying every combination until it compiles. Can somebody explain what I should use where?
3 Answers
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