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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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ExecJS::RuntimeError on Windows trying to follow rubytutorial
...henson/execjs#execjs )
3) Actually fixing the issue / Learning - Use the knowledge of options 1 and 2 to search for other solutions. I can't tell you how many webpages I closed upon seeing options 1 or 2 was the accepted solution before actually finding information about the root issue we were hav...
Insert into a MySQL table or update if exists
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I know all of you allude to this, but I want to be explicit for others. If the ID you insert is NOT the PRIMARY KEY or UNIQUE, then this will not work. This didn't initially work for me because my ID was not unique.
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How do you check whether a number is divisible by another number (Python)?
...e if and only if n is an exact multiple of k. In elementary maths this is known as the remainder from a division.
In your current approach you perform a division and the result will be either
always an integer if you use integer division, or
always a float if you use floating point division.
It...
Boost智能指针——shared_ptr - C/C++ - 清泛网 - 专注C/C++及内核技术
...ptr<implementation> sp1(new implementation());
std::cout<<"The Sample now has "<<sp1.use_count()<<" references\n";
boost::shared_ptr<implementation> sp2 = sp1;
std::cout<<"The Sample now has "<<sp2.use_count()<<" references\n";
sp1.reset();
std::cout<<"After Reset sp...
How to easily truncate an array with JavaScript?
...tooges = ["Moe", "Larry", "Shemp", "Curly", "Joe"];
stooges.length = 3; // now stooges is ["Moe", "Larry", "Shemp"]
Note: if you assign a length which is longer than current length, undefined array elements are introduced, as shown below.
var stooges = ["Moe", "Larry", "Shemp"];
stooges.length = ...
Centering the pagination in bootstrap
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I don't know when drive-by downvoting became cool, but your first answer works for me so have an upvote.
– David Harbage
Nov 27 '13 at 1:20
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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 correct TypeError: Unicode-objects must be encoded before hashing?
...impossible to use. password_salt = os.urandom(32).hex() It should a fixed known value but it can be secret for server only. Please correct me or adapt it to your code.
– Yash
Dec 12 '18 at 15:51
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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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