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How do I access command line arguments in Python?
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123
import sys
sys.argv[1:]
will give you a list of arguments (not including the name of the py...
What is difference between instantiating an object using new vs. without
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123
The line:
Time t (12, 0, 0);
... allocates a variable of type Time in local scope, generall...
Regex, every non-alphanumeric character except white space or colon
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Try this:
[^a-zA-Z0-9 :]
JavaScript example:
"!@#$%* ABC def:123".replace(/[^a-zA-Z0-9 :]/g, ".")
See a online example:
http://jsfiddle.net/vhMy8/
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How to Copy Text to Clip Board in Android?
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As a handy kotlin extension:
fun Context.copyToClipboard(text: CharSequence){
val clipboard = getSystemService(Context.CLIPBOARD_SERVICE) as ClipboardManager
val clip = ClipData.newPlainText("label",text)
clipboard.primaryClip = clip
}
Upda...
How to play audio?
...ML elements:
var audio = new Audio('audio_file.mp3');
audio.play();
function play() {
var audio = new Audio('https://interactive-examples.mdn.mozilla.net/media/examples/t-rex-roar.mp3');
audio.play();
}
<button onclick="play()">Play Audio</button>
This uses the HTML...
PopupWindow - Dismiss when clicked outside
...rawable(android.R.color.transparent) to replace default background.
Have fun@.@
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Count the number of occurrences of a character in a string in Javascript
...sing Pythonian 'generators'
var str = "this is foo bar"
str.split('').map( function(e,i){ if(e === 'o') return i;} )
.filter(Boolean)
//>[9, 10]
[9, 10].length
//>2
Share:
I made this gist, with currently 8 methods of character-counting, so we can directly pool and share our idea...
How can I list all collections in the MongoDB shell?
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AdaTheDevAdaTheDev
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What is JavaScript's highest integer value that a number can go to without losing precision?
...ating-point in a 52-bit mantissa.
The min value is -253.
This makes some fun things happening
Math.pow(2, 53) == Math.pow(2, 53) + 1
>> true
And can also be dangerous :)
var MAX_INT = Math.pow(2, 53); // 9 007 199 254 740 992
for (var i = MAX_INT; i < MAX_INT + 2; ++i) {
// infini...
How to do relative imports in Python?
...ing with relative imports problem, because going through PEP is really not fun.
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