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How to set caret(cursor) position in contenteditable element (div)?

... In most browsers, you need the Range and Selection objects. You specify each of the selection boundaries as a node and an offset within that node. For example, to set the caret to the fifth character of the second line of text, you'd do the following: function s...
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How does one reorder columns in a data frame?

... You can also use the subset function: data <- subset(data, select=c(3,2,1)) You should better use the [] operator as in the other answers, but it may be useful to know that you can do a subset and a column reorder operation in a single command. Update: You can also use the select...
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Single vs double quotes in JSON

...08565','name':'xyz','description':'can control TV\'s and more'}) Step 1: convert the incoming string into a dictionary using ast.literal_eval() Step 2: apply json.dumps to it for the reliable conversion of keys and values, but without touching the contents of values: >>> import ast >&...
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Remove the last character in a string in T-SQL?

... ELSE LEFT(@String, LEN(@String) - 1) END ) END SELECT @String share | improve this answer | follow | ...
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Get all table names of a particular database by SQL query?

...different sql dbms deal with schemas. Try the following For SQL Server: SELECT TABLE_NAME FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_TYPE = 'BASE TABLE' AND TABLE_CATALOG='dbName' For MySQL: SELECT TABLE_NAME FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_TYPE = 'BASE TABLE' AND TABLE_SCHEMA='dbN...
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How to concatenate items in a list to a single string?

... A more generic way to convert python lists to strings would be: >>> my_lst = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10] >>> my_lst_str = ''.join(map(str, my_lst)) >>> print(my_lst_str) '12345678910' ...
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What do I need to do to get Internet Explorer 8 to accept a self signed certificate?

... certificate.”, choose “Continue to this website (not recommended).” Select Tools➞Internet Options. Select Security➞Trusted sites➞Sites. Confirm the URL matches, and click “Add” then “Close”. Close the “Internet Options” dialog box with either “OK” or “Cancel”. Refres...
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Setting JDK in Eclipse

...roperties the "JRE System Library" was still there. When I deleted it and selected "Use default Workspace JRE" only then did it pick up my change. I would have thought Eclipse should have updated my projects JRE when I selected a different JRE for my workspace – MayoMan ...
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How do you create a random string that's suitable for a session ID in PostgreSQL?

...sion verification using PostgreSQL. I know I can get a random number with SELECT random() , so I tried SELECT md5(random()) , but that doesn't work. How can I do this? ...
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How can I check whether a radio button is selected with JavaScript?

...when one of the fields is null. How can I check whether a radio button is selected? 28 Answers ...