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Find the output ab, cd, ef, g for the input a,b,c,d,e,f,g in Javascript and Python

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In this tutorial, we will write a program to find a pairs of elements from an array such that for the input [a,b,c,d,e,f,g] we will get output as ab,cd,ef,g

Javascript and Python program to concatenate the string element in an array with its preceding string element.

Javascript:

const arr = ['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i'];
let result = [];

for(let i=0; i <= arr.length-1; i = i+2){
        let temp = arr[i] + (arr[i+1] ? arr[i+1] : "");
        result.push(temp)
}
print(result);

Output:

ab, cd, ef, g

Python:

arr = ['a', 'b', 'c', 'd', 'e'];
result = [];
i=0
length = len(arr)

while i <= length-1:
    t=""
    try:
        t=arr[i+1]
    except IndexError:
        t=""
    temp = arr[i] + t
    result.append(temp)
    i += 2
    
print(result)

Output:

['ab', 'cd', 'ef', 'g']

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