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Solved - TypeError: Cannot read properties of null (reading 'length')

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Wish Hard answered on April 1, 2022 Popularity 10/10 Helpfulness 2/10

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answer Solved - TypeError: Cannot read properties of null (reading 'length')

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Solved - TypeError: Cannot read properties of null (reading 'length')

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//A function that counts the occurrence of an specific word from string using regex object
function wordCount(w,arr) {
    let sum = 0
    let re = new RegExp(w, 'ig')
    for (let i = 0; i < arr.length; i++) {
         //The match() retures null if the word is not in the string
        //.lenght reture array lenght
        //If word not fount add 0 Eles add the count 
        sum += (!arr[i].match(re))? 0 : arr[i].match(re).length
    }

    return sum
}

Popularity 10/10 Helpfulness 2/10 Language javascript

Source: Grepper

Tags: javascript null properties

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Wish Hard

Contributed on Apr 01 2022

Wish Hard

0 Answers Avg Quality 2/10

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