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Generate random string/characters in JavaScript
...aracter string composed of characters picked randomly from the set [a-zA-Z0-9] .
77 Answers
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?: operator (the 'Elvis operator') in PHP
...will leave foo unchanged.
Some more examples:
<?php
var_dump(5 ?: 0); // 5
var_dump(false ?: 0); // 0
var_dump(null ?: 'foo'); // 'foo'
var_dump(true ?: 123); // true
var_dump('rock' ?: 'roll'); // 'rock'
?>
By the way, it's called the Elvis operator.
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Passing a URL with brackets to curl
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edited Jul 2 '19 at 20:14
moveson
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answered Nov...
How to read/write a boolean when implementing the Parcelable interface?
...s how I'd do it...
writeToParcel:
dest.writeByte((byte) (myBoolean ? 1 : 0)); //if myBoolean == true, byte == 1
readFromParcel:
myBoolean = in.readByte() != 0; //myBoolean == true if byte != 0
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Minimum and maximum date
...Javascript Date object. I found that the minimum date is something like 200000 B.C., but I couldn't get any reference about it.
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Python to print out status bar and percentage
...t progressbar
from time import sleep
bar = progressbar.ProgressBar(maxval=20, \
widgets=[progressbar.Bar('=', '[', ']'), ' ', progressbar.Percentage()])
bar.start()
for i in xrange(20):
bar.update(i+1)
sleep(0.1)
bar.finish()
To install it, you can use easy_install progressbar, or pip ...
Remove border radius from Select tag in bootstrap 3
...arance: none;
-moz-appearance: none;
background-position: right 50%;
background-repeat: no-repeat;
background-image: url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA4AAAAMCAYAAABSgIzaAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAyJpVFh0WE1MOmNvbS5hZG9iZS54bXAAAAAAADw/e...
How to access array elements in a Django template?
... I want to access individual elements of the array in the array (e.g. arr[0] , arr[1] ) etc. instead of looping through the whole array.
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Convert RGBA PNG to RGB with PIL
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130
Here's a version that's much simpler - not sure how performant it is. Heavily based on some djan...
Why use Ruby's attr_accessor, attr_reader and attr_writer?
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750
You may use the different accessors to communicate your intent to someone reading your code, and...