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Difference between JSON.stringify and JSON.parse
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Can also be used a simple object copy for object key value pairings.
– hunterc
Nov 21 '13 at 20:36
4
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Best way to do multi-row insert in Oracle?
I'm looking for a good way to perform multi-row inserts into an Oracle 9 database. The following works in MySQL but doesn't seem to be supported in Oracle.
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Resize fields in Django Admin
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You should use ModelAdmin.formfield_overrides.
It is quite easy - in admin.py, define:
from django.forms import TextInput, Textarea
from django.db import models
class YourModelAdmin(admin.ModelAdmin):
formfield_overrides = {
models.Char...
check if variable is dataframe
...heritance (see What are the differences between type() and isinstance()?). For example, it will tell you if a variable is a string (either str or unicode), because they derive from basestring)
if isinstance(obj, basestring):
i_am_string(obj)
Specifically for pandas DataFrame objects:
import ...
Make a borderless form movable?
Is there a way to make a form that has no border (FormBorderStyle is set to "none") movable when the mouse is clicked down on the form just as if there was a border?
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What does |= (ior) do in Python?
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|= performs an in-place+ operation between pairs of objects. In particular, between:
sets: a union operation
dicts: an update operation
counters: a union (of multisets) operation
numbers: a bitwise OR, binary operation
In most c...
printf format specifiers for uint32_t and size_t
...e right thing. Just because int32_t happens to be int on your compiler/platform doesn't mean it might not be long on another. Same for size_t. It's actually going out of its way and doing more work to detect this portability bug since the easy, natural check would be to just honor the typedef like t...
pydot and graphviz error: Couldn't import dot_parser, loading of dot files will not be possible
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Answer for pydot >= 1.1:
The incompatibility of (upstream) pydot has been fixed by 6dff94b3f1, and thus pydot >= 1.1 will be compatible with pyparsing >= 1.5.7.
Answer applicable to pydot <= 1.0.28:
For anyone else ...
Read a file in Node.js
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this code doesn't seem to be working for me, i still get the same error
– aiden87
Mar 13 '16 at 10:44
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What is the _snowman param in Ruby on Rails 3 forms for?
In Ruby on Rails 3 (currently using Beta 4), I see that when using the form_tag or form_for helpers there is a hidden field named _snowman with the value of ☃ ( Unicode \x9731) showing up.
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