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Unable to export Apple production push SSL certificate in .p12 format
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Turns out all you have to do is select "My Certificates" on the left panel and it enables the .p12 option.
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Set custom HTML5 required field validation message
...he HTML5 "required" functionality to also validate against only whitespace chars being submitted (whereas by default it only validates against an empty string being submitted). So I changed the two lines with if (input.value == "") {, to instead read if (input.value.trim() == "") { - does the trick ...
Force CloudFront distribution/file update
...Click on Blank Function (custom)
Step 3
Click on empty (stroked) box and select S3 from combo
Step 4
Select your Bucket (same as for CloudFront distribution)
Step 5
Set an Event Type to "Object Created (All)"
Step 6
Set Prefix and Suffix or leave it empty if you don't know what it is.
Step ...
SQL - Select first 10 rows only?
How do I select only the first 10 results of a query?
12 Answers
12
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How to specify a editor to open crontab file? “export EDITOR=vi” does not work
... 13.04 installation) try:
There are a number of alternative ways:
1) Run select-editor
select-editor
2) Manually edit the file: ~/.selected_editor specifying your preferred editor. With this option you can specify editor parameters.
# Generated by /usr/bin/select-editor
SELECTED_EDITOR="/usr/...
Easiest way to detect Internet connection on iOS?
...std.h>
#include<netdb.h>
Code:
-(BOOL)isNetworkAvailable
{
char *hostname;
struct hostent *hostinfo;
hostname = "google.com";
hostinfo = gethostbyname (hostname);
if (hostinfo == NULL){
NSLog(@"-> no connection!\n");
return NO;
}
else{
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Select rows of a matrix that meet a condition
...20, ncol = 4)
colnames(m) <- letters[1:4]
The following command will select the first row of the matrix above.
subset(m, m[,4] == 16)
And this will select the last three.
subset(m, m[,4] > 17)
The result will be a matrix in both cases.
If you want to use column names to select columns...
The type or namespace name 'DbContext' could not be found [closed]
... @Chris Dickinson, right click on the References item in the project and select Add Reference.... Then in the .NET tab, select System.Data.Entity. And if you want to use NuGet, right click on the References item and then select Add Library Package Reference... and in the Online tab, search for Ent...
Select first 4 rows of a data.frame in R
How can I select the first 4 rows of a data.frame :
5 Answers
5
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What is the difference between string primitives and String objects in JavaScript?
...plains the much faster random access speed.
So what happens when you do s.charAt(i) for instance?
Since s is not an instance of String, JavaScript will auto-box s, which has typeof string to its wrapper type, String, with typeof object or more precisely s.valueOf(s).prototype.toString.call = [obje...