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How do you use the ? : (conditional) operator in JavaScript?
...whole left part: 'Hello ' + username, which is always true, because it's a string with a length greater than 0.
– Jeffrey Roosendaal
Aug 15 '19 at 23:00
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How to get POSTed JSON in Flask?
...quotes while JSON strictly requires double quotes for both the key values (strings) as string values. If you want the JSON representation, use json.dumps() with the object.
– Jochem Schulenklopper
Nov 12 '18 at 15:59
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Which cryptographic hash function should I choose?
...challenge-response auth, or for access tokens, or just to index a bunch of strings/files. Performance, on the other hand, is a concern for the OP...
– Seva Alekseyev
May 23 '19 at 17:33
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How much of a git sha is *generally* considered necessary to uniquely identify a change in a given c
...hat the chance of it colliding would be negligible, how much of the SHA substring is generally required?
5 Answers
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How to wait until an element exists?
...pecified
* element is inserted into the DOM
* @param {function|string} handler
* A function to execute at the time when the element is inserted or
* string "remove" to remove the listener from the given selector
* @param {bool} shouldRunHandlerOnce
* ...
What is the meaning of “$” sign in JavaScript
...t can be almost anything but is usually "JQuery".
However, in ES6 it is a string interpolation operator in a template "literal" eg.
var s = "new" ; // you can put whatever you think appropriate here.
var s2 = `There are so many ${s} ideas these days !!` ; //back-ticks not quotes
console.log(s2) ;...
What does a lazy val do?
... But it will lead to the same StackOverflowException if your toString method outputs "foo" attribute. Nice example of "lazy" anyway!!!
– Fuad Efendi
Dec 17 '16 at 0:13
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How to generate all permutations of a list?
... in range(len(elements)):
# nb elements[0:1] works in both string and list contexts
yield perm[:i] + elements[0:1] + perm[i:]
A couple of alternative approaches are listed in the documentation of itertools.permutations. Here's one:
def permutations(iterable, r=None...
Custom exception type
...ailto:sysadmin@acme-widgets.com\">system administrator</a>.",
toString: function(){return this.name + ": " + this.message;}
};
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Add Variables to Tuple
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To add a string to the tuple without breaking the string itself check stackoverflow.com/a/16449189
– Enzo Ferey
Dec 24 '17 at 19:24
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