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Unable to install Maven on Windows: “JAVA_HOME is set to an invalid directory”

...lation JAVA_HOME should be set to E:\Sun\SDK\jdk. PATH should be set to include %JAVA_HOME%\bin. share | improve this answer | follow | ...
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AngularJS-Twig conflict with double curly braces

...g them would forbid you to use any templates provided by shared bundles (including the exception templates provided by TwigBundle itself). However, you could use the raw tag around your angular templates to avoid the pain of escaping all curly braces: http://twig.sensiolabs.org/doc/tags...
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What is the difference between Python and IPython?

...hon commands and do not work in a regular Python interactive session. That includes %pwd and %ls. The % prefix is optional and only required when there's no conflict with a Python global in your current session. – Martijn Pieters♦ Nov 22 '16 at 15:27 ...
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Adding two numbers concatenates them instead of calculating the sum

...he end and convert what has been accepted. In the case of parseFloat, that includes one decimal point, but not two. Anything after the valid number is simply ignored. They fail if the string doesn’t even start off as a number. Then you will get NaN. A good general purpose technique for numbers f...
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How do I make a transparent border with CSS?

... has a way to emulate border-color: transparent in IE6. The below example includes the "hasLayout" fix that is brought up in the blog entry comments: /* transparent border */ .testDiv { width: 200px; height: 200px; border: solid 10px transparent; } /* IE6 fix */ *html .testDiv { zo...
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How can I access and process nested objects, arrays or JSON?

...patterns, e.g. the representation of a binary tree, the solution typically includes to recursively [Wikipedia] access each level of the data structure. Here is an example to get the first leaf node of a binary tree: function getLeaf(node) { if (node.leftChild) { return getLeaf(node.lef...
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How to create fixed space and flexible space bar button items programmatically?

...m item. UIBarButtonSystemItem is an enumeration that offers many cases including done, play, add or cancel. However, according to your needs, you may also choose flexibleSpace or fixedSpace cases. flexibleSpace case has the following declaration: Blank space to add between other items. The ...
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Convert duration to hours:minutes:seconds (or similar) in Rails 3 or Ruby

... is a duration in seconds, this emits a zero-padded colon-separated string including days. Example: t = 123456 "%02d:%02d:%02d:%02d" % [t/86400, t/3600%24, t/60%60, t%60] => "01:10:17:36" Lovely. share | ...
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How to convert UTF-8 byte[] to string?

... in ASCII (just build until you get the first zero byte), other encodings, including UTF-8, are not so simple. – Luaan Nov 23 '15 at 10:05 4 ...
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How can I debug a .BAT script?

...the following tool with a trivial Google search : JPSoft's "Take Command" includes a batch file IDE/debugger. Their short presentation video demonstrates it nicely. I'm using the trial version since a few hours. Here is my first humble opinion: On one side, it indeed allows debugging .bat and .c...