JavaScript Program to Check Whether a String Starts and Ends With Certain Characters

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// program to check if a string starts with 'S' and ends with 'G'

function checkString(str) {

    // check if the string starts with S and ends with G
    if(str.startsWith('S') && str.endsWith('G')) {
        console.log('The string starts with S and ends with G');
    }
    else if(str.startsWith('S')) {
        console.log('The string starts with S but does not end with G');
    }
     else if(str.endsWith('G')) {
        console.log('The string starts does not with S but end with G');
    }
    else {
        console.log('The string does not start with S and does not end with G');
    }
}


// take input
let string = prompt('Enter a string: ');
checkString(string);

 

 

Output

Enter a string: String
The string starts with S but does not end with G

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