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In vim, how do I go back to where I was before a search?
Programming in vim I often go search for something, yank it, then go back to where I was, insert it, modify it.
7 Answers
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List of all special characters that need to be escaped in a regex
I am trying to create an application that matches a message template with a message that a user is trying to send. I am using Java regex for matching the message. The template/message may contain special characters.
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Setting environment variables on OS X
What is the proper way to modify environment variables like PATH in OS X?
31 Answers
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CSS checkbox input styling
Any style for input affects every input element. Is there a way to specify styling to apply for only checkboxes without applying a class to each check box element?
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How to run a single test from a rails test suite?
...oject's main directory:
ruby -I test test/unit/my_model_test.rb -n test_name
This runs a single test named "name", defined in the MyModelTest class in the specified file. The test_name is formed by taking the test name, prepending it with the word "test", then separating the words with underscor...
How to get the day of week and the month of the year?
...September','October','November','December'];
Date.prototype.getMonthName = function() {
return months[ this.getMonth() ];
};
Date.prototype.getDayName = function() {
return days[ this.getDay() ];
};
})();
var now = new Date();
var day = now.getDayName();
var month ...
How to make git mark a deleted and a new file as a file move?
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Git will automatically detect the move/rename if your modification is not too severe. Just git add the new file, and git rm the old file. git status will then show whether it has detected the rename.
additionally, for moves around directories, you may need to:
cd ...
How to copy from CSV file to PostgreSQL table with headers in CSV file?
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This worked. The first row had column names in it.
COPY wheat FROM 'wheat_crop_data.csv' DELIMITER ';' CSV HEADER
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Constructing pandas DataFrame from values in variables gives “ValueError: If using all scalar values
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The error message says that if you're passing scalar values, you have to pass an index. So you can either not use scalar values for the columns -- e.g. use a list:
>>> df = pd.DataFrame({'A': [a], 'B': [b]})
>>> df
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Create a CSS rule / class with jQuery at runtime
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You can create style element and insert it into DOM
$("<style type='text/css'> .redbold{ color:#f00; font-weight:bold;} </style>").appendTo("head");
$("<div/>").addClass("redbold").text("SOME NEW TEXT").appendTo("body");
tested ...