First clear solution for Between Markers by suic - javascript coding challenges

Enable Javascript in your browser and then refresh this page, for a much enhanced experience.

First solution in Clear category for Between Markers by suic

function betweenMarkers(text: string, begin: string, end: string): string {
    let leftIndex: number = text.indexOf(begin);
    let rightIndex: number = text.indexOf(end);

    rightIndex = rightIndex === -1 ? text.length : rightIndex;
    leftIndex = leftIndex === -1 ? 0 : leftIndex + begin.length;

    if (leftIndex > rightIndex) return '';
    if (leftIndex === -1 && rightIndex === -1) return text;

    return text.substring(leftIndex, rightIndex);
}

Aug. 10, 2020

Comments:

ibonyun on July 6, 2021, 11:19 p.m.
Nice. This is the same basic approach I took. You wouldn't need line 8 if in line 11 you used `string.slice()` instead of `string.substring()` because `string.slice()` will return `''` in this case. You don't need line 9 because you've already handled this case in lines 5-6. This condition will never evaluate to `true`.

Home

0 %

WebStorm The smartest JavaScript IDE. WebStorm is a powerful JavaScript IDE that makes you productive. Try free!