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Python: fastest way to create a list of n lists
So I was wondering how to best create a list of blank lists:
5 Answers
5
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Prevent unit tests but allow integration tests in Maven
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I found the simplest way to skip only surefire tests is to configure surefire (but not failsafe) as follows:
<plugin>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.14</version>
<configuration>
<!-- skips su...
How to get element by class name? [duplicate]
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The name of the DOM function is actually getElementsByClassName, not getElementByClassName, simply because more than one element on the page can have the same class, hence: Elements.
The return value of this will be a NodeList instance, or a superset of...
doesn't inherit the font from
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edited Nov 12 '12 at 8:21
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Possible heap pollution via varargs parameter
I understand this occurs with Java 7 when using varargs with a generic type;
5 Answers
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List of standard lengths for database fields
...ernational/questions/qa-personal-names
For database fields, VARCHAR(255) is a safe default choice, unless you can actually come up with a good reason to use something else. For typical web applications, performance won't be a problem. Don't prematurely optimize.
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How to make an AJAX call without jQuery?
...test.html",
context: document.body,
success: function(){
$(this).addClass("done");
}
});
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Cron jobs and random times, within given hours
...that runs a bash script that randomizes the run times... Something like this:
crontab:
0 9 * * * /path/to/bashscript
and in /path/to/bashscript:
#!/bin/bash
maxdelay=$((14*60)) # 14 hours from 9am to 11pm, converted to minutes
for ((i=1; i<=20; i++)); do
delay=$(($RANDOM%maxdelay)) # ...
What’s the best way to check if a file exists in C++? (cross platform)
I have read the answers for What's the best way to check if a file exists in C? (cross platform) , but I'm wondering if there is a better way to do this using standard c++ libs? Preferably without trying to open the file at all.
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How to Get Element By Class in JavaScript?
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This code should work in all browsers.
function replaceContentInContainer(matchClass, content) {
var elems = document.getElementsByTagName('*'), i;
for (i in elems) {
if((' ' + elems[i].className + ' ').indexOf...