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How to change collation of database, table, column?
The database is latin1_general_ci now and I want to change collation to utf8mb4_general_ci .
19 Answers
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SVG fill color transparency / alpha?
...attribute; fill-opacity: This attribute takes a decimal number between 0.0 and 1.0, inclusive; where 0.0 is completely transparent.
For example:
<rect ... fill="#044B94" fill-opacity="0.4"/>
Additionally you have the following:
stroke-opacity attribute for the stroke
opacity for the enti...
Linux find file names with given string
I'm on Ubuntu, and I'd like to find all files in the current directory and subdirectories whose name contains the string "John". I know that grep can match the content in the files, but I have no idea how to use it with file names. Any help would be appreciated.
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Convert a list of data frames into one data frame
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since it's 2018 and dplyr is both fast and a solid tool to use, I've changed this to the accepted answer. The years, they fly by!
– JD Long
Jan 12 '19 at 12:03
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JavaScript REST client Library [closed]
...hich allow me to perform all the REST operation like ( GET , POST , PUT and DELETE over HTTP or HTTPS )?
9 Answers
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How to append output to the end of a text file
How do I append the output of a command to the end of a text file?
10 Answers
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Why is access to the path denied?
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I was struggling for over 6 Hrs and after looking at your response saw that the path was directory ... thanks a ton @CrazyTim ..
– User M
Nov 29 '17 at 0:59
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Email validation using jQuery
I'm new to jQuery and was wondering how to use it to validate email addresses.
35 Answers
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ADB Android Device Unauthorized
Since I reinstalled Eclipse (simply deleted and downloaded it again) I can't debug my applications on Samsung Galaxy i9001 (with CyanogenMod - Android 4.4.2). It worked fine before reinstallation.
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How to run a background task in a servlet based web application?
I'm using Java and I want to keep a servlet continuously running in my application, but I'm not getting how to do it. My servlet has a method which gives counts of the user from a database on a daily basis as well as the total count of the users from the whole database. So I want to keep the servlet...