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What uses are there for “placement new”?
Has anyone here ever used C++'s "placement new"? If so, what for? It looks to me like it would only be useful on memory-mapped hardware.
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Use rvmrc or ruby-version file to set a project gemset with RVM?
I use RVM, the Ruby Version Manager to specify a Ruby version and a set of gems for each of my Rails projects.
5 Answers
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Can we append to a {% block %} rather than overwrite?
In my core.html I have a block labeled javascript. It would be great if I can append more lines to this block without overwriting everything in it.
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How can I get selector from jQuery object
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Ok, so in a comment above the question asker Fidilip said that what he/she's really after is to get the path to the current element.
Here's a script that will "climb" the DOM ancestor tree and then build fairly specific selector including any id or class attributes on the it...
Are (non-void) self-closing tags valid in HTML5?
...gt; (which leads to <br /> meaning <br>> (i.e. <br>>) and <title/hello/ meaning <title>hello</title>). This is an SGML rule that browsers did a very poor job of supporting, and the spec advises authors to avoid the syntax.
In XHTML, <foo /> means <...
How to remove unwanted space between rows and columns in table?
How do I remove the extra space between the rows and columns in the table.
14 Answers
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Git: list only “untracked” files (also, custom commands)
...cked files try:
git ls-files --others --exclude-standard
If you need to pipe the output to xargs, it is wise to mind white spaces using git ls-files -z and xargs -0:
git ls-files -z -o --exclude-standard | xargs -0 git add
Nice alias for adding untracked files:
au = !git add $(git ls-files -o...
How do I pass JavaScript variables to PHP?
I want to pass JavaScript variables to PHP using a hidden input in a form.
14 Answers
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Why does HTML think “chucknorris” is a color?
How come certain random strings produce colors when entered as background colors in HTML? For example:
9 Answers
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Split column at delimiter in data frame [duplicate]
I would like to split one column into two within at data frame based on a delimiter. For example,
6 Answers
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