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What is the use of the JavaScript 'bind' method?
...this inside the function to be the parameter passed to bind().
Here's an example that shows how to use bind to pass a member method around that has the correct this:
var myButton = {
content: 'OK',
click() {
console.log(this.content + ' clicked');
}
};
myButton.click();
var looseClick ...
Copy a variable's value into another
...
b = a;
The code actually does nothing at all, because a and b are the exact same thing. The code is the same as if you'd written:
b = b;
which obviously won't do anything.
Why does your new code work?
b = { key1: a.key1, key2: a.key2 };
Here you are creating a brand new object with the {....
How do I remove all non-ASCII characters with regex and Notepad++?
...
This expression will search for non-ASCII values:
[^\x00-\x7F]+
Tick off 'Search Mode = Regular expression', and click Find Next.
Source: Regex any ASCII character
...
Base64 encoding and decoding in client-side Javascript
...
Some browsers such as Firefox, Chrome, Safari, Opera and IE10+ can handle Base64 natively. Take a look at this Stackoverflow question. It's using btoa() and atob() functions.
For server-side JavaScript (Node), you can use Buffers to decode.
If you are...
is_null($x) vs $x === null in PHP [duplicate]
...e related isset() language construct checks whether the variable actually exists before doing the null check. So isset($undefinedVar) will not throw a notice.
Also note that isset() may sometimes return true even though the value is null - this is the case when it is used on an overloaded object, i...
What is the purpose of Rank2Types?
...can write a function that takes different types of arguments without this extension, you can't write a function that uses its argument as different types in the same invocation.
For example the following function can't be typed without this extension because g is used with different argument types ...
Simple Digit Recognition OCR in OpenCV-Python
...of that letter.
And this SOF helped me to find it. These 16 features are explained in the paperLetter Recognition Using Holland-Style Adaptive Classifiers.
( Although I didn't understand some of the features at end)
2) Since I knew, without understanding all those features, it is difficult to do t...
What is the difference between tinyint, smallint, mediumint, bigint and int in MySQL?
...ly)
DB2
Turns out they all use the same specification (with a few minor exceptions noted below) but support various combinations of those types (Oracle not included because it has just a NUMBER datatype, see the above link):
| SQL Server MySQL Postgres DB2
-------------------...
How do I pronounce “=>” as used in lambda expressions in .Net
...
I usually say 'such that' when reading that operator.
In your example, p => p.Age > 16 reads as "P, such that p.Age is greater than 16."
In fact, I asked this very question on the official linq pre-release forums, and Anders Hejlsberg responded by saying
I usually read the =&g...
Random hash in Python
...ne:
import random
hash = random.getrandbits(128)
print("hash value: %032x" % hash)
I don't really see the point, though. Maybe you should elaborate why you need this...
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