{
 "cells": [
  {
   "cell_type": "markdown",
   "id": "1532aed2",
   "metadata": {},
   "source": [
    "## String"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "0e05a2e4",
   "metadata": {},
   "source": [
    "- Immutable"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "4147a9c8",
   "metadata": {},
   "source": [
    "### List to string"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "865a393e",
   "metadata": {},
   "source": [
    "- 'separator'.join(iterable) \n",
    "    - takes list as input\n",
    "    - returns string which is concat of these list elements"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 3,
   "id": "24444ac5",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "'SahilChoudhary'"
      ]
     },
     "execution_count": 3,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "''.join(['Sahil' 'Choudhary'])"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 4,
   "id": "0d79b1e5",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "'A,B,C,D'"
      ]
     },
     "execution_count": 4,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "','.join(['A','B','C','D'])"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "92f01d8a",
   "metadata": {},
   "source": [
    "### String to List"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "6472d1c2",
   "metadata": {},
   "source": [
    "- str_var.split('-')\n",
    "    - Takes String\n",
    "    - Returns List"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 5,
   "id": "bc324f7d",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "['sahil', 'choudhary']"
      ]
     },
     "execution_count": 5,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "'sahil-choudhary'.split('-')"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "e489eafa",
   "metadata": {},
   "source": [
    "### Iterating over Strings"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 14,
   "id": "43b591bb",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "['s', 'a', 'h', 'i', 'l', ' ', 'c', 'h', 'o', 'u', 'd', 'h', 'a', 'r', 'y']"
      ]
     },
     "execution_count": 14,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "# For iterations,for loop is not pythonic way,using comprehensions is pythonic way\n",
    "\n",
    "s='sahil choudhary'\n",
    "[x for x in s]"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "4c55c8af",
   "metadata": {},
   "source": [
    "### Reversing a String"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 11,
   "id": "b5990c57",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "'lihas'"
      ]
     },
     "execution_count": 11,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "'sahil'[::-1]"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "8bcdb23b",
   "metadata": {},
   "source": [
    "### Note\n",
    "- input() always takes input as string\n",
    "    - convert it to int/float as required"
   ]
  }
 ],
 "metadata": {
  "kernelspec": {
   "display_name": "Python 3",
   "language": "python",
   "name": "python3"
  },
  "language_info": {
   "codemirror_mode": {
    "name": "ipython",
    "version": 3
   },
   "file_extension": ".py",
   "mimetype": "text/x-python",
   "name": "python",
   "nbconvert_exporter": "python",
   "pygments_lexer": "ipython3",
   "version": "3.8.8"
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 "nbformat": 4,
 "nbformat_minor": 5
}