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Best way to convert strings to symbols in hash
What's the (fastest/cleanest/straightforward) way to convert all keys in a hash from strings to symbols in Ruby?
31 Answers...
How to change collation of database, table, column?
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You need to either convert each table individually:
ALTER TABLE mytable CONVERT TO CHARACTER SET utf8mb4
(this will convert the columns just as well), or export the database with latin1 and import it back with utf8mb4.
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How do I convert a Django QuerySet into list of dicts?
How can I convert a Django QuerySet into a list of dicts? I haven't found an answer to this so I'm wondering if I'm missing some sort of common helper function that everyone uses.
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How to display pandas DataFrame of floats using a format string for columns?
...or some floats only, then I think you'll have to pre-modify the dataframe (converting those floats to strings):
import pandas as pd
df = pd.DataFrame([123.4567, 234.5678, 345.6789, 456.7890],
index=['foo','bar','baz','quux'],
columns=['cost'])
df['foo'] = df['cos...
How to convert 'binary string' to normal string in Python3?
... that sys.getfilesystemencoding() returns the name of the encoding used to convert between Unicode filenames and bytes filenames and is strongly dependant on operating system you are using. AFAIK, this function is used to convert to the system’s preferred representation. That means that it will no...
Convert Object to JSON string
jQuery.parseJSON('{"name":"John"}') converts string representation to object
but I want the reverse. Object is to be converted to JSON string
I got a link http://www.devcurry.com/2010/03/convert-javascript-object-to-json.html
but it need to have json2.js do jQuery has a native method to do this?
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MySQL convert date string to Unix timestamp
How do I convert the following format to unix timestamp?
4 Answers
4
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Converting Java objects to JSON with Jackson
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To convert your object in JSON with Jackson:
ObjectWriter ow = new ObjectMapper().writer().withDefaultPrettyPrinter();
String json = ow.writeValueAsString(object);
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How do I subtract minutes from a date in javascript?
... date according to the above condition in Unix-timestamp format.
you can convert Unix timestamp into conventional time by using new Date().for example
var extract=new Date(minute)
console.log(minute)//this will print the time in the readable format.
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In PHP, can you instantiate an object and call a method on the same line?
...king for a one-liner to accomplish this as part of a single expression for converting dates from one format to another. I like doing this in a single line of code because it is a single logical operation. So, this is a little cryptic, but it lets you instantiate and use a date object within a sing...