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XPath: select text node

... the top, html element. You probably want /html//text() . Some knowledge and understanding of XPath is typically required in order to construct XPath expressions. – Dimitre Novatchev Jun 3 '15 at 21:51 ...
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Convert a list to a data frame

I have a nested list of data. Its length is 132 and each item is a list of length 20. Is there a quick way to convert this structure into a data frame that has 132 rows and 20 columns of data? ...
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Nested function in C

... You cannot define a function within another function in standard C. You can declare a function inside of a function, but it's not a nested function. gcc has a language extension that allows nested functions. They are nonstandard, and as such are entirely compiler-dependent. ...
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WebDriver: check if an element exists? [duplicate]

... and the size is not a method - driver.findElements( By.id("...") ).size != 0 – Gal Bracha Feb 1 '15 at 12:26 ...
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How can I prevent the textarea from stretching beyond his parent DIV element? (google-chrome issue o

...x-width: 100px; max-height: 100px; } To limit size to parents width and/or height: textarea { max-width: 100%; max-height: 100%; } share | improve this answer | ...
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Set time part of DateTime in ruby

Say I have a datetime object eg DateTime.now . I want to set hours and minutes to 0 (midnight). How can I do that? 4 Ans...
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jquery input select all on focus

I'm using this code to try and select all of the text in the field when a user focuses on the field. What happens is, it selects all for a second, then its unselected and the typing cursor is left where I clicked... ...
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Can someone explain in simple terms to me what a directed acyclic graph is?

...answered Feb 17 '10 at 19:29 Roland BoumanRoland Bouman 27.5k55 gold badges6161 silver badges6464 bronze badges ...
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Starting python debugger automatically on error

...e some time, yet I have never found a suitable solution. If I run a script and I come across, let's say an IndexError, python prints the line, location and quick description of the error and exits. Is it possible to automatically start pdb when an error is encountered? I am not against having an ext...
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How do you remove duplicates from a list whilst preserving order?

...o seen_add instead of just calling seen.add? Python is a dynamic language, and resolving seen.add each iteration is more costly than resolving a local variable. seen.add could have changed between iterations, and the runtime isn't smart enough to rule that out. To play it safe, it has to check the o...