export function getMiddleString(src = '', left = '', right = '', more = false) { let leftIndex = src.indexOf(left) if (leftIndex === -1) { return '' } leftIndex += left.length let rightIndex if (more) { rightIndex = src.lastIndexOf(right, leftIndex) } else { rightIndex = src.indexOf(right, leftIndex) } if (rightIndex === -1) { return '' } return src.slice(leftIndex, rightIndex) }