Question

How to trim punctuation in TypeScript

Answer 1

const array: string[] = [
    "typescript!!!",
    "...c",
    "java,,,",
    "c++",
    "**python__",
    ".S.Q.L."
];

array.forEach(s => {
    console.log(trimPunctuation(s));
});

function trimPunctuation(s) {
    const charsToTrim: string[] = ['*', '!', ',', '.', '_'];
    let start: number = 0;
    let end: number = s.length;

    while (start < end && charsToTrim.includes(s[start])) {
        start++;
    }
    while (end > start && charsToTrim.includes(s[end - 1])) {
        end--;
    }

    return s.slice(start, end);
}



/*
run:

"typescript" 
"c" 
"java" 
"c++" 
"python" 
"S.Q.L" 

*/

 

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