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Determine whether JSON is a JSONObject or JSONArray
I am going to receive either a JSON Object or Array from server, but I have no idea which it will be. I need to work with the JSON, but to do so, I need to know if it is an Object or an Array.
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How to check if a variable is an integer in JavaScript?
...eger which is the case... in case of NaN also the type of NaN is different from the type of the return value of pareInt().....
– pranag
Feb 1 '13 at 15:21
1
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Adding a new SQL column with a default value
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Try this:
ALTER TABLE table1 ADD COLUMN foo INT DEFAULT 0;
From the documentation that you linked to:
ALTER [ONLINE | OFFLINE] [IGNORE] TABLE tbl_name
alter_specification [, alter_specification] ...
alter_specification:
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ADD [COLUMN] (col_name column_definition,...)
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Android View shadow
... can't change background color nor border style, so it's better to benefit from the shadow of it, while still be able to put a background via layer-list
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<!--the shadow c...
Add x and y labels to a pandas plot
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currently, that 'automatic supply from DataFrame' doesn't work. I just tried it (pandas version 0.16.0, matplotlib 1.4.3) and the plot generates correctly, but with no labels on the axes.
– szeitlin
Apr 29 '15 at 18:22
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How to load images dynamically (or lazily) when users scrolls them into view
...urce, the page shows X number of <img> tags but they are not fetched from the server straight away ). What is this technique called, how does it work and in how many browsers does it work. And is there a jQuery plugin that can achieve this behavior with minimum coding.
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Creating anonymous objects in php
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How's that different from going $someObj = new \stdClass()?
– JamesNZ
Mar 5 '18 at 23:15
add a comment
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Perl flags -pe, -pi, -p, -w, -d, -i, -t?
...ion :-)
The command line switches are all detailed in perlrun. (available from the command line by calling perldoc perlrun)
Going into the options briefly, one-by-one:
-p: Places a printing loop around your command so that it acts on each
line of standard input. Used mostly so Perl can beat ...
Code for Greatest Common Divisor in Python [closed]
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It's in the standard library.
>>> from fractions import gcd
>>> gcd(20,8)
4
Source code from the inspect module in Python 2.7:
>>> print inspect.getsource(gcd)
def gcd(a, b):
"""Calculate the Greatest Common Divisor of a and b.
U...
.Net picking wrong referenced assembly version
...ts use the latest assembly. Also make sure they are grabbing the assembly from a local path instead of the GAC. (I really really don't like the GAC. It has caused no end of issues on some projects I've been on). We typically have an "Assemblies" folder that all projects use for external assembly ...