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How does one write code that best utilizes the CPU cache to improve performance?
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The most effective data structure for a cache is an array. Caches work best, if your data structure is laid out sequentially as CPUs read entire cache lines (usually 32 bytes or more) at once from main memory.
Any algorithm which accesses memory in random order trashes the caches because it alw...
What are the best practices to follow when declaring an array in Javascript?
When I need to declare a new array I use this notation
9 Answers
9
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Split a string by a delimiter in python
...re three) elements in the string, then you can use comma to separate these items:
date, time, event_name = ev.get_text(separator='@').split("@")
After this line of code, the three variables will have values from three parts of the variable ev
So, if the variable ev contains this string and we ap...
Find unused npm packages in package.json
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many of the answer here are how to find unused items.
I wanted to remove them automatically.
Install this node project.
$ npm install -g typescript tslint tslint-etc
At the root dir, add a new file tslint-imports.json
{
"extends": [
"tslint-etc"
],
"r...
ASP.NET MVC passing an ID in an ActionLink to the controller
...y via
@Html.ActionLink("Select", "Create", "StudentApplication", new { id=item.PersonId }, null)
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What's the best way to validate an XML file against an XSD file?
...les that needs to conform to an xsd file that was given to me. What's the best way to verify they conform?
13 Answers
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Android WebView: handling orientation changes
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The best answer to this is following Android documentation found here
Basically this will prevent Webview from reloading:
<activity android:name=".MyActivity"
android:configChanges="keyboardHidden|orientation|screenSize...
How to preventDefault on anchor tags?
...aving off the href, its not possible to use your keyboard to tab onto that item. Unless you added a tabindex. With all that in mind, why not just use preventDefault...? That's what its there for.
– duhseekoh
Feb 3 '15 at 22:01
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Why does [5,6,8,7][1,2] = 8 in JavaScript?
...,5,6][1,2,3];
Here the second box i.e. [1,2,3] becomes [3] i.e. the last item so the result will be 4
for example if you keep [1,2,3,4,5,6] in an array
var arr=[1,2,3,4,5,6];
arr[3]; // as [1,2,3] in the place of index is equal to [3]
similarly
*var arr2=[1,2,3,4,5,6];
// arr[1,2] or arr[...
Padding is invalid and cannot be removed?
...ent the encryption/decryption process having any hand in creation of these items. It focuses on the task at hand (encrypting and decrypting data) and requires the iv and key to be supplied by the caller.
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