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JavaScript: client-side vs. server-side validation
...ans users get faster feedback and more of them sign up, resulting in $100k extra revenue per year, it more than pays for the extra maintenance costs. DRY is a very good principle, but it's not the only consideration. Code quality is really measured in how well it serves users and an organization in ...
Call a REST API in PHP
...rmat, then simply use PHP command echo $my_json_variable to make that json string availabe to the client.
So as you can see, my API returns json data, but you need to know (or look at the returned data to find out) what format the response from the API is in.
This is how I connect to the API from ...
What is the logic behind the “using” keyword in C++?
...::f; // lift Base's f into Derived's scope -- works in C++98
void f(char); // provide a new f
void f(int); // prefer this f to Base::f(int)
using Base::Base; // lift Base constructors Derived's scope -- C++11 only
Derived(char); // provide a new constructor
Der...
How to get device make and model on iOS?
...e currentdevice is? I know it's possible to get the model through
NSString *deviceType = [[UIDevice currentDevice] model];
which will just return whether I have an "iPhone" or an "iPod", BUT I was wondering if it's possible to detect/know if I have an iPhone 3GS vs. and iPhone 4 vs. an iPho...
How do I get a Date without time in Java?
...is asking about how to get a Date object - that answer formats a date to a string, which isn't the same thing. Fundamentally, asking what date a Date is on is a meaningless question without more information: the time zone and the calendar system you're using.
– Jon Skeet
...
How to compare if two structs, slices or maps are equal?
...er than using reflection):
http://play.golang.org/p/CPdfsYGNy_
m1 := map[string]int{
"a":1,
"b":2,
}
m2 := map[string]int{
"a":1,
"b":2,
}
fmt.Println(reflect.DeepEqual(m1, m2))
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Read a variable in bash with a default value
...
$1 becomes ${1:-some_default_string}
– ThorSummoner
Oct 24 '16 at 22:58
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Numpy index slice without losing dimension information
...
The example is missing extra brackets for the tuple in the assignment to b; it should be b = np.zeros((100,10)).
– Jerzy
Mar 17 '17 at 20:18
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SQL/mysql - Select distinct/UNIQUE but return all columns?
...y applicable to numeric values, but also compare the alphabetical order of string values.
SELECT country, MAX(city) FROM locations
GROUP BY country
will result in:
--country-- --city--
France Paris
Poland Krakow
Italy Milano
or:
SELECT country, MIN(city) FROM locations
GROU...
how to check the dtype of a column in python pandas
I need to use different functions to treat numeric columns and string columns. What I am doing now is really dumb:
6 Answer...