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Roman Tolmachev tolmachevroman

  • Santiago, Chile
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@ironic-name
ironic-name / EmailValidator.kt
Last active September 30, 2024 09:12
Kotlin regex email validator function
fun isEmailValid(email: String): Boolean {
return Pattern.compile(
"^(([\\w-]+\\.)+[\\w-]+|([a-zA-Z]|[\\w-]{2,}))@"
+ "((([0-1]?[0-9]{1,2}|25[0-5]|2[0-4][0-9])\\.([0-1]?"
+ "[0-9]{1,2}|25[0-5]|2[0-4][0-9])\\."
+ "([0-1]?[0-9]{1,2}|25[0-5]|2[0-4][0-9])\\.([0-1]?"
+ "[0-9]{1,2}|25[0-5]|2[0-4][0-9]))|"
+ "([a-zA-Z]+[\\w-]+\\.)+[a-zA-Z]{2,4})$"
).matcher(email).matches()
}
@yshrsmz
yshrsmz / StaggeredGridBorderDecoration.kt
Last active June 6, 2022 08:11
Border ItemDecoration for StaggeredGridLayoutManager & RecyclerView
package net.yslibrary.tumblegrid.dashboard
import android.graphics.Canvas
import android.graphics.Rect
import android.graphics.drawable.ColorDrawable
import android.support.v7.widget.RecyclerView
import android.support.v7.widget.StaggeredGridLayoutManager
import android.view.View
class StaggeredGridBorderDecoration(private val borderSize: Int,

Take-home functional programming interview

This document is licensed CC0.

These are some questions to give a sense of what you know about FP. This is more of a gauge of what you know, it's not necessarily expected that a single person will breeze through all questions. For each question, give your answer if you know it, say how long it took you, and say whether it was 'trivial', 'easy', 'medium', 'hard', or 'I don't know'. Give your answers in Haskell for the questions that involve code.

Please be honest, as the interviewer may do some spot checking with similar questions. It's not going to look good if you report a question as being 'trivial' but a similar question completely stumps you.

Here's a bit more guidance on how to use these labels:

@dineshviswanath
dineshviswanath / python_web_dev_flask_environment_setup.md
Last active April 29, 2025 08:19
How to install python and Flask on Mac OS X

#Starting Python Web development in Mac OS X#

Objective: Getting started with Python Development Operating System: Mac OS X Python version installed: 3.5 (5th December 2015)

Downoad the lastest Python from https://www.python.org/downloads/

@gregkorossy
gregkorossy / VisionApiFocusFix.java
Last active November 22, 2019 11:38
Mobile Vision API fix for missing autofocus feature
/*
* IF YOU WANT TO JUST ACCESS THE CAMERA INSTANCE SO THAT YOU CAN SET ANY OF THE PARAMETERS, VISIT THE FOLLOWING LINK:
* https://gist.github.com/Gericop/364dd12b105fdc28a0b6
*/
/**
* Custom annotation to allow only valid focus modes.
*/
@StringDef({
Camera.Parameters.FOCUS_MODE_CONTINUOUS_PICTURE,
package blog;
import java.util.List;
import rx.Observable;
public class WidgetAndArticles {
static final class Widget {
String articleName;
String articleUrl;
@JakeWharton
JakeWharton / README.md
Last active April 17, 2023 14:07
A JUnit @rule which launches an activity when your test starts. Stop extending gross ActivityInstrumentationBarfCase2!
@skyfishjy
skyfishjy / CursorRecyclerViewAdapter.java
Last active March 18, 2025 21:07
CursorRecyclerViewAdapter
/*
* Copyright (C) 2014 skyfish.jy@gmail.com
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
@staltz
staltz / introrx.md
Last active May 6, 2025 07:45
The introduction to Reactive Programming you've been missing
@jubecker
jubecker / torch7_install_osx.md
Last active November 16, 2016 16:26
Install torch7 on OS X 10.9