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How can I check if an element exists in the visible DOM?
...f the browser's selecting method, and checking it for a truthy value (generally).
For example, if my element had an id of "find-me", I could simply use...
var elementExists = document.getElementById("find-me");
This is specified to either return a reference to the element or null. If you must ha...
Is a one column table good design? [closed]
It it ok to have a table with just one column? I know it isn't technically illegal, but is it considered poor design?
15 A...
Why are hexadecimal numbers prefixed with 0x?
...an immediately tell the base (0 is the same in both bases),
it's mathematically sane (00005 == 05), and
no precious special characters are needed (as in #123).
When C was created from B, the need for hexadecimal numbers arose (the PDP-11 had 16-bit words) and all of the points above were still val...
git: How do I get the latest version of my code?
...it clean -xffd
git pull
Again, this will nuke any changes you've made locally so use carefully. Think about rm -Rf when doing this.
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Get program execution time in the shell
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To see all versions of time you have installed on your system, you can use type -a time
– spinup
Apr 2 '18 at 14:36
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Start two instances of IntelliJ IDE
...edition).
When I have one instance started and I try to start another one, all that happens is that my started instance gets focus.
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How to copy a directory structure but only include certain files (using windows batch files)
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Really!? I am also using Win 7. When I try, it just doesn't copy any files. Only folders. I'll try again. (while we're at it, what is the syntax to include more than *.zip - let's say *.zip and *.jpg.
– Ni...
How do I bottom-align grid elements in bootstrap fluid layout
... The first column has a lot of content, which I want to fill the span normally. The second column just has a button and some text, which I want to bottom align relative to the cell in the first column.
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Convert tabs to spaces in Notepad++
... @Algina - you can change the settings for Notepad++ to automatically convert tabs to spaces - just go to: Settings - Preferences - Tab Settings - tick the box "Replace by Space" - like mrzli already described in this answer.
– AddingColor
Apr 13 '15...
How do I have to configure the proxy settings so Eclipse can download new plugins?
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I had the same problem. I installed Eclipse 3.7 into a new folder, and created a new workspace. I launch Eclipse with a -data argument to reference the new workspace.
When I attempt to connect to the marketplace to get the SVN and Maven plugins, I get th...