@genexus/web-standard-functions/dist/lib-esm/text/subString.js

GeneXus JavaScript standard functions library for web generators

/**
 * Return a substring from a given string
 * @param startPosition
 * @param length
 * @return string
 */
export const subString = (target, startPosition, length) => {
    if (length === undefined) {
        length = -1;
    }
    return length < 0
        ? Array.from(target)
            .slice(startPosition - 1)
            .join("")
        : Array.from(target)
            .slice(startPosition - 1, startPosition - 1 + length)
            .join("");
};
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