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invalid target release: 1.7
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Escape string for use in Javascript regex [duplicate]
I am trying to build a javascript regex based on user input:
1 Answer
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How can I add comments in MySQL?
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Three types of commenting are supported
Hash base single line commenting using #
Select * from users ; # this will list users
Double Dash commenting using --
Select * from users ; -- this will list users
Note : Its important to have single white space just afte...
Tooltip on image
I am using the tooltip. But I want that on image tag, like when I mouseover the image then the tooltip should work. I have tried but not working for me on image tag.
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Does JavaScript have a method like “range()” to generate a range within the supplied bounds?
... startChar.charCodeAt(0), startChar.charCodeAt(0)))
}
lodash.js _.range() function
_.range(10);
=> [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
_.range(1, 11);
=> [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
_.range(0, 30, 5);
=> [0, 5, 10, 15, 20, 25]
_.range(0, -10, -1);
=> [0, -1, -2, -3, -4, -5...
mongoose vs mongodb (nodejs modules/extensions), which better? and why?
...know how to use it, you can faster write simple objects, save those to database.
Without mongoose you will have faster application with direct connection to mongodb. No-one says, that you can't write your own models to save stuff to db. You can. And I think it's easier. You write code, which you wi...
In Python, using argparse, allow only positive integers
...still need to define an actual method that decides this for you:
def check_positive(value):
ivalue = int(value)
if ivalue <= 0:
raise argparse.ArgumentTypeError("%s is an invalid positive int value" % value)
return ivalue
parser = argparse.ArgumentParser(...)
parser.add_argu...
Adding a new value to an existing ENUM Type
...he new type.
-- 1. rename the enum type you want to change
alter type some_enum_type rename to _some_enum_type;
-- 2. create new type
create type some_enum_type as enum ('old', 'values', 'and', 'new', 'ones');
-- 3. rename column(s) which uses our enum type
alter table some_table rename column some...
How do I discover memory usage of my application in Android?
... 947 34488K 28528K 10834K 9308K com.android.wallpaper
987 26964K 26956K 8751K 7308K com.google.process.gapps
954 24300K 24296K 6249K 4824K com.android.phone
948 23020K 23016K 5864K 4748K com.android.inputmethod.latin
888 25728K 25724K 5774K ...
In practice, what are the main uses for the new “yield from” syntax in Python 3.3?
... etc."""
for i in range(4):
yield '<< %s' % i
def reader_wrapper(g):
# Manually iterate over data produced by reader
for v in g:
yield v
wrap = reader_wrapper(reader())
for i in wrap:
print(i)
# Result
<< 0
<< 1
<< 2
<< 3
Instead of ...