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jQuery: count number of rows in a table
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It has a length property because it's an array. I don't know enough of the history of jQuery to know whether the jQuery object always extended an array.
– tvanfosson
Nov 19 '09 at 11:35
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How to Store Historical Data
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We are using the same aproach.But now I am wondering is it better to store only START_DATETIME and don't store END_DATETIME
– bat_ventzi
May 27 '15 at 7:40
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Read environment variables in Node.js
...he top of your application entry file:
require('dotenv').config();
Done. Now you can access your environment variables with process.env.ENV_NAME.
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Is there a way to avoid null check before the for-each loop iteration starts? [duplicate]
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It's already 2017, and you can now use Apache Commons Collections4
The usage:
for(Object obj : CollectionUtils.emptyIfNull(list1)){
// Do your stuff
}
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Is there a valid reason for enforcing a maximum width of 80 characters in a code file, this day and
...rminals or on 80-column printouts. Those requirement have mostly gone away now, but there are still valid reasons to keep the 80 column rule:
To avoid wrapping when copying code into email, web pages, and books.
To view multiple source windows side-by-side or using a side-by-side diff viewer.
To i...
How can I see normal print output created during pytest run?
...y, neither py.test nor any existing third-party py.test plugin (...that I know of, anyway) supports teeing – despite Python trivially supporting teeing out-of-the-box.
Monkey-patching py.test to do anything unsupported is non-trivial. Why? Because:
Most py.test functionality is locked behind a ...
Putting an if-elif-else statement on one line?
...gt;> a = "Hello" if foo() else "Goodbye"
Edit:
Your revised question now shows that the three statements are identical except for the value being assigned. In that case, a chained ternary operator does work, but I still think that it's less readable:
>>> i=100
>>> a = 1 if i...
JavaScript - Get minutes between two dates
...("2012-12-25");
var diffMs = (Christmas - today); // milliseconds between now & Christmas
var diffDays = Math.floor(diffMs / 86400000); // days
var diffHrs = Math.floor((diffMs % 86400000) / 3600000); // hours
var diffMins = Math.round(((diffMs % 86400000) % 3600000) / 60000); // minutes
al...
Shortcut to switch between design and text in Android Studio
Does anyone know some shortcut to switch between design and text in android studio while editing XML layout?
14 Answers
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R and version control for the solo data analyst
...e this applies to you, but it would have made our clients very nervous to know that every version of every script that we had ever produced was potentially discoverable. We used version control for code modules that were reused in multiple engagements, but did not use version control for engagement...