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What is the current directory in a batch file?
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From within your batch file:
%cd% refers to the current working directory (variable)
%~dp0 refers to the full path to the batch file's directory (static)
%~dpnx0 and %~f0 both refer to the full path to the batch directory and file name (static).
See also: What does %~dp0 mean, and h...
Does Dart support enumerations?
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Beginning 1.8, you can use enums like this:
enum Fruit {
apple, banana
}
main() {
var a = Fruit.apple;
switch (a) {
case Fruit.apple:
print('it is an apple');
break;
}
// get all the values of the enums
for (List<Fruit> val...
ALTER TABLE without locking the table?
When doing an ALTER TABLE statement in MySQL, the whole table is read-locked (allowing concurrent reads, but prohibiting concurrent writes) for the duration of the statement. If it's a big table, INSERT or UPDATE statements could be blocked for a looooong time. Is there a way to do a "hot alter", li...
How to host google web fonts on my own server?
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Please keep in mind that my answer has aged a lot.
There are other more technically sophisticated answers below, e.g.:
neverpanic/google-font-download
google-webfont-helper
localfont
so don't let the fact that this is the currentl...
How do I install Eclipse Marketplace in Eclipse Classic?
I'm running Eclipse 3.6.1 Classic, which does not come with the Eclipse Marketplace plugin by default. I've looked around the Eclipse website, but I don't see an available plugin for installing Eclipse Marketplace. Am I just not seeing it?
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How do I create a new line in Javascript?
...ent.write("<br>");
The string Hello\n\nTest in your source will look like this:
Hello!
Test
The string Hello<br><br>Test will look like this in HTML source:
Hello<br><br>Test
The HTML one will render as line breaks for the person viewing the page, the \n just d...
Using git commit -a with vim
...he file and exit vim. This is also easier for some people as it's the same key pressed twice.
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Selecting multiple columns in a pandas dataframe
I have data in different columns but I don't know how to extract it to save it in another variable.
18 Answers
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Bundler: Command not found
...ysql installed correctly by following some tutorials. If I run bundle check or bundle install I get the error '-bash: bundle: command not found'. From gem list --local I see 'bundler (1.0.2, 1.0.0)' is installed.
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See :hover state in Chrome Developer Tools
...th the pseudo-class rules and force them on elements.
To see the rules like :hover in the Styles pane click the small :hov text in the top right.
To force an element into :hover state, right click it and select :hover.
Additional tips on the elements panel in Chrome Developer Tools Shortcuts...