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How can a Java variable be different from itself?
...15.21.1. Numerical Equality Operators == and !=:
Floating-point equality testing is performed in accordance with the rules of the IEEE 754 standard:
If either operand is NaN, then the result of == is false but the result of != is true.
Indeed, the test x!=x is true if and only if the value of x is...
Mock framework vs MS Fakes frameworks
...you add the assembly that contains the dependency to the references of the test project and then right-click on it to generate the test doubles (stubs or shims). Then when you are testing, you are actually using these generated classes instead. NMock uses generics to accomplish the same thing (i.e...
ExpressJS How to structure an application?
....js application.
focusaurus/express_code_structure is the repo with the latest code for this. Pull requests welcome.
Here's a snapshot of the README since stackoverflow doesn't like just-a-link answers. I'll make some updates as this is a new project that I'll continue updating, but ultimately the...
JavaScript OR (||) variable assignment explanation
... cannot later do if( true == f ). If an integer was stored in f, then this test will always return false.
– user1115652
Aug 1 '13 at 2:11
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How do I replace a character at a particular index in JavaScript?
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In my tests this method was quickest by far... and even faster if you don't need to verify that [index] isn't bigger than the string length. Modified: function setCharAt(str,idx,newChr){ return str.substring(0,idx)+newChr+str.subst...
Why is my program slow when looping over exactly 8192 elements?
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The following tests have been done with Visual C++ compiler as it is used by the default Qt Creator install (I guess with no optimization flag). When using GCC, there is no big difference between Mystical's version and my "optimized" code....
How to remove \xa0 from string in Python?
...Parent, </p><p><span style="font-size: 1rem;">This is a test message, </span><span style="font-size: 1rem;">kindly ignore it. </span></p><p><span style="font-size: 1rem;">Thanks</span></p>'
So lets try to clean this HTML string:
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How to validate an email address in JavaScript
...Using regular expressions is probably the best way. You can see a bunch of tests here (taken from chromium)
function validateEmail(email) {
const re = /^(([^<>()\[\]\\.,;:\s@"]+(\.[^<>()\[\]\\.,;:\s@"]+)*)|(".+"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\])|(([a-zA-Z\-0-9]...
Add a new item to a dictionary in Python [duplicate]
...lt_data + {'item3': 3}
{'item2': 2, 'item3': 3, 'item1': 1}
>>> {'test1': 1} + Dict(test2=2)
{'test1': 1, 'test2': 2}
Note that this is more overhead then using dict[key] = value or dict.update(), so I would recommend against using this solution unless you intend to create a new dictionar...
What is the JavaScript convention for no operation?
...y turn off debug code in my program. In C/C++, I would have used macros. I tested assigning my fn to Function.prototype and timed it, comparing the results to simply having an if statement inside the function to return immediately. I also compared these to the results of simply removing the function...