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(Built-in) way in JavaScript to check if a string is a valid number
...rns true if the variable does NOT contain a valid number
Examples
isNaN(123) // false
isNaN('123') // false
isNaN('1e10000') // false (This translates to Infinity, which is a number)
isNaN('foo') // true
isNaN('10px') // true
Of course, you can negate this if you need...
Add a prefix to all Flask routes
..._ROOT config value to your prefix:
app.config["APPLICATION_ROOT"] = "/abc/123"
@app.route("/")
def index():
return "The URL for this page is {}".format(url_for("index"))
# Will return "The URL for this page is /abc/123/"
Setting the APPLICATION_ROOT config value simply limit Flask's session...
Windows path in Python
...is os.path.join( "C:\\", "meshes", "as" )
– Jean-François Fabre♦
Mar 2 '19 at 11:32
add a ...
What are copy elision and return value optimization?
...
when the two objects would have been destroyed without the optimization.123 This elision of copy/move
operations, called copy elision, is permitted in the following circumstances (which may be combined to
eliminate multiple copies):
— in a return statement in a function with a class re...
ASP.NET: HTTP Error 500.19 – Internal Server Error 0x8007000d
... I also had this issue. Thanks!
– José Margaça Lopes
Apr 18 '18 at 10:05
add a comment
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How do I immediately execute an anonymous function in PHP?
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@yes123 nope. still have to use call_user_func
– Gordon
Oct 30 '12 at 22:41
2
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Understanding Spliterator, Collector and Stream in Java 8
...-> x+y can be written as Integer::sum.
– Jean-François Savard
Jun 17 '16 at 18:14
3
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Copy to clipboard in Node.js?
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I did npm install çlipboardy in cypress.I have a button in my web application, on click on that button should get the clipboard content but it gives undefined, any inputs are much appreciated stackoverflow.com/questions/61650737/…
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returning in the middle of a using block
... happed in the background. Many thanks.
– Sercan Timoçin
Sep 10 '19 at 15:18
@Bart it's probably translated to: try {...
Git: list only “untracked” files (also, custom commands)
...ted May 4 '19 at 21:36
Jean-François Fabre♦
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answered Dec 14 '11 at 14:31
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