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Full examples of using pySerial package [closed]
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Blog post Serial RS232 connections in Python
import time
import serial
# configure the serial connections (the parameters differs on the device you are connecting to)
ser = serial.Serial(
port='/dev/ttyUSB1',
baudrate=9600,
parity=serial.PAR...
Can I query MongoDB ObjectId by date?
... in the ObjectId in great detail.
Briefly in JavaScript code:
/* This function returns an ObjectId embedded with a given datetime */
/* Accepts both Date object and string input */
function objectIdWithTimestamp(timestamp) {
/* Convert string date to Date object (otherwise assume timestamp is a...
How can I set focus on an element in an HTML form using JavaScript?
...t type="text" id="mytext"/>
Your script would be
<script>
function setFocusToTextBox(){
document.getElementById("mytext").focus();
}
</script>
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...
UTF-8 byte[] to String
...rsets.UTF_8);
And if you're feeling lazy, you can use the Apache Commons IO library to convert the InputStream to a String directly:
String str = IOUtils.toString(inputStream, StandardCharsets.UTF_8);
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Android Fragment handle back button press [duplicate]
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When you are transitioning between Fragments, call addToBackStack() as part of your FragmentTransaction:
FragmentTransaction tx = fragmentManager.beginTransation();
tx.replace( R.id.fragment, new MyFragment() ).addToBackStack( "tag" ).commit();...
Insert HTML with React Variable Statements (JSX)
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You can use dangerouslySetInnerHTML, e.g.
render: function() {
return (
<div className="content" dangerouslySetInnerHTML={{__html: thisIsMyCopy}}></div>
);
}
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How to use sidebar with the keyboard in Sublime Text 2 and 3?
...0 (Ctrl+Zero) to focus on the side bar.
Then you'll be able to move selection among files with arrow keys and to open the selected file hitting Enter, without touching the mouse.
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is it possible to update UIButton title/text programmatically?
...it, thanks. I really wish Objective-C would just throw a NullPointerException in cases like this, instead of silently pretending that it's OK to send a message to a nil object. This bites me almost daily... ugh!
– George Armhold
Jun 23 '09 at 17:26
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When should I use nil and NULL in Objective-C?
..., they are exactly equal, you can send messages to both nil and to NULL. Idiomatically though nil is usually used to represent an object
– cobbal
Oct 14 '09 at 5:43
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TypeScript sorting an array
...issue I ran into with typescript. It was treating an inline Boolean expression as whatever the first value's type was instead of the complete expression.
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