Your first function just do not work and is wrong. You do not the correct parameter types. Do not use register as it has no effect at all. Register is ignored at any level of optimization. Compilers are better than me or you in micro optimizations – so help the compiler optimizer with the const … Read more
These do different things. .closest(‘.DivB’) will traverse the DOM tree up until it finds an element that matches the selector (probably none). .parent().next() will do what it looks like it will do, find the parent then its next sibling. What you want is .closest(‘td’).find(‘.DivB’) and don’t worry about micro-optimizations. It won’t break when the DOM … Read more
1. Go to project level build.gradle and add buildscript { repositories { jcenter() mavenLocal() google() } dependencies { //Your gradle version example classpath ‘com.android.tools.build:gradle:3.1.3’ //play services plugin example classpath ‘com.google.gms:google-services:3.2.0’ classpath ‘com.google.firebase:firebase-plugins:1.1.5’ // NOTE: Do not place your application dependencies here; they belong // in the individual module build.gradle files } } 2. App level … Read more
For the purpose of in-memory data representation, a C++ class can have either plain or static member functions, or virtual member functions (including some virtualdestructor, if any). Plain or static member functions do not take any space in data memory, but of course their compiled code take some resource, e.g. as binary code in the … Read more
It sounds like you’re trying to verify that all items in list2 are contained within at least one item in list1. If that’s the case, this should do the trick: bool list1ContainsList2Items = list2.All(l2 => list1.Any(l1 => l1.Contains(l2))); 2 solved Quickest way to compare two generic lists C# [closed]
Because Integer.parseInt(urls[i]); is throwing NumberFormatException and you are swallowing the Exception . The below code will not work in your case, but at least you will get to know the error: try{ a[i]=Integer.parseInt(urls[i]); }catch(Exception e){ e.printStackTrace(); throw new RunTimeException(e); } All the elements of a primitive int array are defaulted to 0. Hence you get … Read more
Test: var string = ‘ fsajdf asdfjosa fjoiawejf oawjfoei jaosdjfsdjfo sfjos 2324234 sdf safjao j o sdlfks dflks l ‘ string.replace(/^\s+|\s+$|\s+(?=\s)/g, ”) string.trim() Results: Function Result regex regex x 1,458,388 ops/sec ±2.11% (62 runs sampled) trim trim x 7,530,342 ops/sec ±1.22% (62 runs sampled) Conclusion: trim is faster Source: https://www.measurethat.net/Benchmarks/Show/4767/0/regex-removing-whitespace-vs-trim solved Which is more faster? … Read more
Quite interesting results. I’ve re-run the benchmark on 4.8.2 20140120 and got: strcmp : 1.938 secs std::string.compare(const char* s) : 1.842 secs std::string == std::string : 1.225 secs strncmp : 2.660 secs memcmp : 1.182 secs std::string.compareN : 1.711 secs strstr : 5.854 secs memmem : 1.187 secs std::string.find : 14.363 secs So std::string behaves … Read more
You explicitly ask the compiler to generate unoptimized code with -O0. The result is indeed rather slow as the nested loops do not get optimized away. The java compiler probably does that and removes the empty loops, a rather easy optimization. If you could require the java compiler to generate unoptimized byte code and prevent … Read more
There will be no difference in the compiler generated code. The else is unnecessary but may be written for clarity. solved Which one of the following codes is faster in excecution? [closed]
I am assuming your arr is a POD (plain old data) array. You could make it in C++ a class and overload the operator[] to do runtime index checking. You usually cannot do what you want, and if you could, it would be strongly implementation and operating system dependent. On Linux, access permission to data … Read more
Here’s the quick answer – it will probably take you longer than a week 🙂 The best thing to do is view your website in different browsers and see what the problems are. You have been a bit vague in your question, but you could be looking at having to fix UI issues and possbily … Read more
My answer follows the DRY Principle (Don’t Repeat Yourself). If you put the function in both files, and later find a bug on Page #1, someone has to remember that the function is duplicated on Page #2 as well (in this case, assume the bug report says “Page #1 doesn’t work properly”). From that bug … Read more
None! They are both the same code. They are written differently, but take the exact same instructions and comparisons to achieve the result, therefore, they are the same. So, none of them is faster than the other. 2 solved What code is faster? [closed]
I would save the data into an array then use lodash to manipulate it. You could edit, delete, and add rows using lodash’s built in functions. When you want to save the data to the backend you would then post the array back to the server. This will keep backend requests to a minimum which … Read more