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Rename multiple files in a directory in Python [duplicate]
...e os.rename(src, dst) to rename or move a file or a directory.
$ ls
cheese_cheese_type.bar cheese_cheese_type.foo
$ python
>>> import os
>>> for filename in os.listdir("."):
... if filename.startswith("cheese_"):
... os.rename(filename, filename[7:])
...
>>>
$ ls
c...
React.js: onChange event for contentEditable
...tChange}
contentEditable
dangerouslySetInnerHTML={{__html: this.props.html}}></div>;
},
shouldComponentUpdate: function(nextProps){
return nextProps.html !== this.getDOMNode().innerHTML;
},
emitChange: function(){
var html = this.getDO...
Iterate over object keys in node.js
...e passed to .forEach.
Object.keys(myObject).forEach(function(element, key, _array) {
// element is the name of the key.
// key is just a numerical value for the array
// _array is the array of all the keys
// this keyword = secondArg
this.foo;
this.bar();
}, secondArg);
...
find -exec a shell function in Linux?
...ssue by changing while read for a for loop; for item in $(find . ); do some_function "${item}"; done
– user5359531
Oct 22 '18 at 16:44
|
sho...
Check if an element is present in an array [duplicate]
...ot contain "includes". Please correct. en.wikipedia.org/wiki/ECMAScript#7th_Edition_-_ECMAScript_2016
– Juergen
Jan 9 '19 at 18:37
...
addEventListener vs onclick
...
@Gaurav_soni No. The name of the function and all the code it contains are already exposed in the javascript file, which is in plaintext. Anyone can open a web console and execute or manipulate any javascript. If your javascript con...
What is the strict aliasing rule?
...sg) onto a buffer of the word size of your system (like a pointer to uint32_ts or uint16_ts). When you overlay a struct onto such a buffer, or a buffer onto such a struct through pointer casting you can easily violate strict aliasing rules.
So in this kind of setup, if I want to send a message to so...
How to slice an array in Bash
...his or arguments that contained spaces would get split: ARGS=( "$@" ); ARGS_AFTER_FIRST=( "${ARGS[@]:1}" )
– Heath Borders
Jan 27 '16 at 21:15
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...
Co-variant array conversion from x to y may cause run-time exception
...
The most straight forward "solution"
flPanel.Controls.AddRange(_list.AsEnumerable());
Now since you are covariantly changing List<LinkLabel> to IEnumerable<Control> there is no more concerns since it is not possible to "add" an item to an enumerable.
...
How do you remove duplicates from a list whilst preserving order?
.../uniqifiers-benchmark
Fastest one:
def f7(seq):
seen = set()
seen_add = seen.add
return [x for x in seq if not (x in seen or seen_add(x))]
Why assign seen.add to seen_add instead of just calling seen.add? Python is a dynamic language, and resolving seen.add each iteration is more cos...
