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lastindexof in ext.js

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Smoggy Skunk answered on May 15, 2020 Popularity 9/10 Helpfulness 2/10

answer lastindexof in ext.js

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lastindexof in ext.js

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var anyString="Brave new world"

// Displays 8
document.write("<P>The index of the first w from the beginning is " +
anyString.indexOf("w"))
// Displays 10
document.write("<P>The index of the first w from the end is " +
anyString.lastIndexOf("w"))
// Displays 6
document.write("<P>The index of 'new' from the beginning is " +
anyString.indexOf("new"))
// Displays 6
document.write("<P>The index of 'new' from the end is " +
anyString.lastIndexOf("new"))

Popularity 9/10 Helpfulness 2/10 Language javascript

Source: docs.sencha.com

Tags: javascript lastindexof

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Contributed on Dec 08 2022

Smoggy Skunk

0 Answers Avg Quality 2/10

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lastindexof method javascript

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// lastIndexOf only requires a single value 
// and returns the index of last instance of value found in array

const cities = [
  "Orlando",
  "Denver",
  "Edinburgh",
  "Chennai",
  "Denver",
  "Eskisehir",
  "Yokohama",
  "Denver",
  "Chennai",
];

console.log(cities.lastIndexOf("Denver"));
// Expected output is 7

Popularity 10/10 Helpfulness 4/10 Language javascript

Source: Grepper

Tags: javascript j

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Contributed on Nov 06 2022

Code Walker

0 Answers Avg Quality 2/10

lastindexof() javascript

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'canal'.lastIndexOf('a');     // retorna 3
'canal'.lastIndexOf('a', 2);  // retorna 1
'canal'.lastIndexOf('a', 0);  // retorna -1
'canal'.lastIndexOf('x');     // retorna -1
'canal'.lastIndexOf('c', -5); // retorna 0
'canal'.lastIndexOf('c', 0);  // retorna 0
'canal'.lastIndexOf('');      // retorna 5
'canal'.lastIndexOf('', 2);   // retorna 2

Popularity 10/10 Helpfulness 4/10 Language javascript

Source: developer.mozilla.org

Tags: javascript j

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Contributed on May 15 2020

Rodrigo Palazon

0 Answers Avg Quality 2/10

lastindexof

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var numbers = [2, 5, 9, 2];
numbers.lastIndexOf(2);     // 3
numbers.lastIndexOf(7);     // -1
numbers.lastIndexOf(2, 3);  // 3
numbers.lastIndexOf(2, 2);  // 0
numbers.lastIndexOf(2, -2); // 0
numbers.lastIndexOf(2, -1); // 3

Popularity 10/10 Helpfulness 3/10 Language javascript

Source: developer.mozilla.org

Tags: javascript j

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Contributed on Aug 06 2020

Witty Whale

0 Answers Avg Quality 2/10

lastindexof in ext.js

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