@backtrace/sourcemap-tools/lib/helpers/stringHelpers.js

Backtrace-JavaScript sourcemap tools

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.appendBeforeWhitespaces = appendBeforeWhitespaces;
/**
 * Appends `value` to `str` before trailing whitespaces in `str`.
 * @param str String to append to.
 * @param value String to append.
 * @example
 * const str = 'abc\n\n';
 * const value = 'def';
 * const appended = appendBeforeWhitespaces(str, value); // 'abcdef\n\n'
 */
function appendBeforeWhitespaces(str, value) {
    var _a;
    const whitespaces = (_a = str.match(/\s*$/)) === null || _a === void 0 ? void 0 : _a[0];
    if (!whitespaces) {
        return str + value;
    }
    return str.substring(0, str.length - whitespaces.length) + value + whitespaces;
}
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