/*
字符串相关扩展
includes()判断字符串是否包含指定的字符串 (有的返回true, 否则返回false)
参数一: 匹配的字串; 参数二: 从第几个开始匹配
startsWith() 判断字符串是否以特定的字符串开始
endsWith() 判断字符串是否以特定的字符串结束
*/
// console.log('hello world'.includes('world',6)); true
// console.log('hello world'.includes('world',7)); false
// let url = 'admin/index.php';
// console.log(url.startsWith('admin')); true
// console.log(url.endsWith('php')); true
// -------------------------------------------
let obj = {
username : 'list',
age : '12',
gender : 'male'
}
let tag = '<div><span>'+obj.username+'</span><span>'+obj.age+'</span><span>'+obj.gender+'</span></div>';
console.log(tag);
// 反引号表示模板, 模板中的内容可以有格式,通过${}方式填充数据
let fn = function(info){
return info;
}
let tpl = `
<div>
<span>${obj.username}</span>
<span>${obj.age}</span>
<span>${obj.gender}</span>
<span>${1+1}</span>
<span>${fn('nihao')}</span>
</div>
`;
console.log(tpl);