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How to get the previous URL in JavaScript?
... submitting a form?). Specified by DOM Level 2. More here.
window.history allows navigation, but not access to URLs in the session for security and privacy reasons. If more detailed URL history was available, then every site you visit could see all the other sites you'd been to.
If you're dealing...
How do I check if an object has a key in JavaScript? [duplicate]
...the inverse.
if (!('key' in myObj))
Be careful! The in operator matches all object keys, including those in the object's prototype chain.
Use myObj.hasOwnProperty('key') to check an object's own keys and will only return true if key is available on myObj directly:
myObj.hasOwnProperty('key')
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Shortcut to Apply a Formula to an Entire Column in Excel [closed]
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@soo Is there a way we can programmatically do it, so that once new row entries are defined, the formula for sum automatically applies to the cell in the new row.
– Ankit Dhingra
Mar 4 '13 at 11:35
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How can I get a specific number child using CSS?
I have a table whose td s are created dynamically. I know how to get the first and last child but my question is:
2 Answ...
PHP - add item to beginning of associative array [duplicate]
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The name's Triumph the Insult Comic Dev. I'm here all week.
– outis
Apr 30 '11 at 1:46
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show 2 more comments
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python .replace() regex [duplicate]
...waway script - both the regex approach and the string search approach have all sorts of inputs they'll fail on. For anything in production, I would want to be doing some sort of more sophisticated parsing than either regex or simple string search can accomplish.
– Julian
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Strange behavior for Map, parseInt [duplicate]
...string[, radix]);
while map handler's second argument is index:
... callback is invoked with three arguments: the value of the element,
the index of the element, and the Array object being traversed.
share
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Private module methods in Ruby
...itten) to do this is by creating a class within the module that deals with all the logic, and the module just provides a convenient method, e.g.
module GTranslate
class Translator
def perform( text ); translate( text ); end
private
def translate( text )
# do some private stuff...
Throwing cats out of windows
Imagine you're in a tall building with a cat. The cat can survive a fall out of a low story window, but will die if thrown from a high floor. How can you figure out the longest drop that the cat can survive, using the least number of attempts?
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How to disable a link using only CSS?
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This now works in all modern browsers including IE 11. If you need support for IE 10 and below, you can use a JavaScript polyfill such as this one.
– Keavon
Jul 31 '14 at 5:13
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