@minionorg/share
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TypeScript
/**
* 移除字符串前后空格,为空字符串返回null
*
* @param {string} str 要修剪的字符串,可以为null
* @return {string} 修剪后的字符串,空字符串为null
* @example
* trimToNull(null) = null
* trimToNull('') = null
* trimToNull(' ') = null
* trimToNull('abc') = 'abc'
* trimToNull(' abc ') = 'abc'
*/
declare function trimToNull(str: string): string;
export default trimToNull;