How to Count the Number of Substring Occurrences in a String?

If you have the string ("Artificial Neural Networks: In Theory and Practice", a string of length 23) and the substring ('Artificial', a string of length 6), you can use cons to store it in an array initially. Then to calculate the occurrence of that specific substring in the first string, you can use the "every?" method.

substring javascript

Sleepy Swiftlet on Dec 25, 2019

var str = "Hello world!";
var res = str.substring(1, 4); //ell

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substr() javascript

Cipriano98 on Sep 18, 2020

const str = 'substr';

console.log(str.substr(1, 2)); // (1, 2): ub
console.log(str.substr(1)); // (1): ubstr

/* Percorrendo de trás para frente */
console.log(str.substr(-3, 2)); // (-3, 2): st
console.log(str.substr(-3)); // (-3): str

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substring

Prickly Pony on Feb 06, 2020

const str = 'Mozilla';

console.log(str.substring(1, 3));
// expected output: "oz"

console.log(str.substring(2));
// expected output: "zilla"

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js .substring

Plain Pygmy on Oct 13, 2020

let anyString = 'Mozilla'

// Displays 'M'
console.log(anyString.substring(0, 1))
console.log(anyString.substring(1, 0))

// Displays 'Mozill'
console.log(anyString.substring(0, 6))

// Displays 'lla'
console.log(anyString.substring(4))
console.log(anyString.substring(4, 7))
console.log(anyString.substring(7, 4))

// Displays 'Mozilla'
console.log(anyString.substring(0, 7))
console.log(anyString.substring(0, 10))

Source: developer.mozilla.org

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javascript substring

Exuberant Eland on Aug 18, 2020

string.substring( start, end )

Source: www.codingfactory.net

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If the "every?" returns true, then it means that this substring occurred at least once in the first string, and hence will return 1. Otherwise, if it returns false, then there is no occurrence of that specific substring.

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How to Count the Number of Substring Occurrences in a String?

substring javascript

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substring

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