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How to find the array index with a value?
...t",
"subject": "chemistry"
},
];
Now if we have a requirement to select a particular object in the array. Let us assume that we want to find index of student with name Tanmay.
We can do that by iterating through the array and comparing value at the given key.
function functiontofindIndex...
Why is '397' used for ReSharper GetHashCode override?
...g a hash the result will overflow (since GetHashCode() returns an Int32). Selecting a prime is just helpful for distribution, I don't have a math degree so I'm not going to try and explain it, but multiplication by a prime will have a result that's more well distributed than multiplication by any o...
Break when exception is thrown
...ttern matchers for exception names.
Also, under Window -> Preferences, Select Java -> Debug and there's a checkbox to tell the debugger to break on uncaught exceptions
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Accessing console and devtools of extension's background.js
... by doing a normal "show developer console" then use the dropdown arrow to selects its "javascript environment" then you'll have access to its methods, etc.
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Are nested HTML comments possible?
...ere. Its parent element has to be either the <body> element or a few select others.
– John E
Jan 17 '19 at 14:09
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AddBusinessDays and GetBusinessDays
...using negative numbers with AddBusinessDays allows non-business days to be selected.
– Ristogod
May 28 '14 at 17:37
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Debugging in Clojure? [closed]
...here's also dotrace, which allows you to look at the inputs and outputs of selected functions.
(use 'clojure.contrib.trace)
(defn fib[n] (if (< n 2) n (+ (fib (- n 1)) (fib (- n 2)))))
(dotrace [fib] (fib 3))
produces the output:
TRACE t4425: (fib 3)
TRACE t4426: | (fib 2)
TRACE t4427: | ...
HashMap get/put complexity
...te information out of thin air. Having a data structure of n element I can select one element in n different way. With that, I can encode log(n) bit information. If I can encode that in zero bit (that is what O(1) means) then I created an infinitely compressing ZIP algorithm.
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How do you sort an array on multiple columns?
...lso sort the second attribute. Unless you loop it as many as the number of selected columns.. Am I right? e.g. [[A, 10], [J, 15], [A, 5], [J, 5]] => [[A, 10], [A, 5], [J, 15], [J, 5]]
– Bla...
Apr 23 '15 at 2:30
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Expression Versus Statement
...abeled_statement
| compound_statement
| expression_statement
| selection_statement
| iteration_statement
| jump_statement
;
expression_statement
: ';'
| expression ';'
;
http://www.lysator.liu.se/c/ANSI-C-grammar-y.html
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