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Difference between JSON.stringify and JSON.parse
...json.stringify(json.parse(data))?i saw this in code...so this is basically converting json data in to object and then again reconverting it to json data..
– HIRA THAKUR
Jul 22 '13 at 11:00
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How to convert a string with comma-delimited items to a list in Python?
How do you convert a string into a list?
14 Answers
14
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ORA-12505, TNS:listener does not currently know of SID given in connect descriptor
...u're running these on the machine you've installed Oracle XE on.)
sqlplus system/system-password@XE
sqlplus system/system-password
sqlplus / as sysdba
(Replace system-password with the password you set for the SYS and SYSTEM users during the Oracle XE installation.)
The first of these three con...
How to randomize (or permute) a dataframe rowwise and columnwise?
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Random Samples and Permutations ina dataframe
If it is in matrix form convert into data.frame
use the sample function from the base package
indexes = sample(1:nrow(df1), size=1*nrow(df1))
Random Samples and Permutations
Convert java.util.Date to String
I want to convert a java.util.Date object to a String in Java.
18 Answers
18
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Ruby: Easiest Way to Filter Hash Keys?
...nt.
If you're using Ruby, you can use the select method. You'll need to convert the key from a Symbol to a String to do the regexp match. This will give you a new Hash with just the choices in it.
choices = params.select { |key, value| key.to_s.match(/^choice\d+/) }
or you can use delete_if an...
Relative frequencies / proportions with dplyr
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Error in bind_rows_(x, .id) : Column am` can't be converted from numeric to character`
– f0nzie
Aug 6 '18 at 23:41
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PHP function to generate v4 UUID
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on unix systems, use the system kernel to generate a uuid for you.
file_get_contents('/proc/sys/kernel/random/uuid')
Credit Samveen on https://serverfault.com/a/529319/210994
Note!: Using this method to get a uuid does in fact...
Converting between strings and ArrayBuffers
Is there a commonly accepted technique for efficiently converting JavaScript strings to ArrayBuffers and vice-versa? Specifically, I'd like to be able to write the contents of an ArrayBuffer to localStorage and to read it back.
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How can I convert a DOM element to a jQuery element?
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var elm = document.createElement("div");
var jelm = $(elm);//convert to jQuery Element
var htmlElm = jelm[0];//convert to HTML Element
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