/**
* trim 去除空格
* @since 1.0.0
* @param {String} str
* @param {Number} type 1-所有空格 2-前后空格 3-前空格 4-后空格
* @returns {String}
*/
export function trim(str,type= 1){
type = parseInt(type)
switch (type) {
case 1:
return str.replace(/\s+/g, "");
case 2:
return str.replace(/(^\s*)|(\s*$)/g, "");
case 3:
return str.replace(/(^\s*)/g, "");
case 4:
return str.replace(/(\s*$)/g, "");
default:
return str;
}
}
/**
* changeCase 变换书写形式
* @since 1.0.0
* @param {String} str
* @param {Number} type 1-首字母大写 2-首页母小写 3-大小写转换 4-全部大写 5-全部小写
* @returns {String}
*/
export function changeCase(str,type){
type = type || 4
switch (type) {
case 1:
return str.replace(/\b\w+\b/g, function (word) {
return word.substring(0, 1).toUpperCase() + word.substring(1).toLowerCase();
});
case 2:
return str.replace(/\b\w+\b/g, function (word) {
return word.substring(0, 1).toLowerCase() + word.substring(1).toUpperCase();
});
case 3:
return str.split('').map( function(word){
if (/[a-z]/.test(word)) {
return word.toUpperCase();
}else{
return word.toLowerCase()
}
}).join('')
case 4:
return str.toUpperCase();
case 5:
return str.toLowerCase();
default:
return str;
}
}
/**
* filterTag 过滤html标签
* @since 1.0.0
* @param {String} str
* @returns {String}
*/
export function filterTag(str){
str = str.replace(/&/ig, "&");
str = str.replace(/</ig, "<");
str = str.replace(/>/ig, ">");
str = str.replace(" ", " ");
return str;
}
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