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Random String Generator Returning Same String [duplicate]
...oped a random string generator but it's not behaving quite as I'm hoping. My goal is to be able to run this twice and generate two distinct four character random strings. However, it just generates one four character random string twice.
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iOS: how to perform a HTTP POST request?
I'm approaching iOS development and I'd like to have one of my first applications to perform a HTTP POST request.
7 Answers...
Hiding textarea resize handle in Safari
I'm using textarea components in my application, and I control their height dynamically. As the user types, the height is increased whenever there is enough text. This works fine on IE, Firefox, and Safari.
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Is there a standard function to check for null, undefined, or blank variables in JavaScript?
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arg == null is pretty common in my experience.
– Bryan Downing
Oct 10 '14 at 1:56
8
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What's the right way to decode a string that has special HTML entities in it? [duplicate]
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This is my favourite way of decoding HTML characters. The advantage of using this code is that tags are also preserved.
function decodeHtml(html) {
var txt = document.createElement("textarea");
txt.innerHTML = html;
retu...
Removing All Child Views from View
...dView and I dynamically inflate many other LinearLayouts into it; later in my application I am looking to start fresh with that GridView and clear all of its child Views. How would I do this? TIA.
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prevent property from being serialized in web API
...ied to each member you want to be serialized:
[DataContract]
public class MyClass {
[DataMember]
public int Id { get; set;} // Serialized
[DataMember]
public string Name { get; set; } // Serialized
public string DontExposeMe { get; set; } // Will not be serialized
}
Dare I say this i...
Unique random string generation
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I don't think that they really are random, but my guess is those are some hashes.
Whenever I need some random identifier, I usually use a GUID and convert it to its "naked" representation:
Guid.NewGuid().ToString("n");
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Get PostGIS version
...eople stated, select PostGIS_full_version(); will answer your question. On my machine, where I'm running PostGIS 2.0 from trunk, I get the following output:
postgres=# select PostGIS_full_version();
postgis_full_version
-------------...
Split delimited strings in a column and insert as new rows [duplicate]
...org/2014/12/08/tidyr-0-2-0/)
> library(tidyr)
> library(dplyr)
> mydf
V1 V2
2 1 a,b,c
3 2 a,c
4 3 b,d
5 4 e,f
6 . .
> mydf %>%
mutate(V2 = strsplit(as.character(V2), ",")) %>%
unnest(V2)
V1 V2
1 1 a
2 1 b
3 1 c
4 2 a
5 2 c
6 3 ...