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StringUtil.js

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/**获取string,为null则返回''

* @param s

* @return

*/

function getString(s) {

return s == null ? '' : s;

}

/**获取去掉前后空格后的string,为null则返回''

* @param s

* @return

*/

function getTrimmedString(s) {

return this.getString(s).trim();

}

/**获取去掉所有空格后的string,为null则返回''

* @param s

* @return

*/

function getNoBlankString(s) {

return this.getString(s).replace('\\s', '');

}

/**判断字符是否为空

* @param s

* @param trim

* @return

*/

function isEmpty(s, trim) {

if (s == null) {

return true;

}

if (trim) {

s = s.trim();

}

if (s == '') {

return true;

}

return false;

}

/**添加后缀

* @param key

* @param suffix

* @return key + suffix，第一个字母小写

*/

function addSuffix(key, suffix) {

key = this.getNoBlankString(key);

if (key == '') {

return this.firstCase(suffix);

}

return this.firstCase(key) + this.firstCase(suffix, true);

}

/**首字母大写或小写

* @param key

* @param upper

* @return

*/

function firstCase(key, upper) {

key = this.getString(key);

if (key == '') {

return '';

}

const first = key.substring(0, 1);

key = (upper ? first.toUpperCase() : first.toLowerCase()) + key.substring(1, key.length);

return key;

}

/**全部大写

* @param s

* @param trim

* @return

*/

function toUpperCase(s, trim) {

s = trim ? this.getTrimmedString(s) : this.getString(s);

return s.toUpperCase();

}

/**全部小写

* @param s

* @return

*/

function toLowerCase(s, trim) {

s = trim ? this.getTrimmedString(s) : this.getString(s);

return s.toLowerCase();

}

//校正（自动补全等）字符串>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>