1.localStorage
2.stringify/stringify/parse
3.some()/every()
![](https://img.haomeiwen.com/i2101255/44a8795a3ae05cea.png)
![](https://img.haomeiwen.com/i2101255/627d0f9319ae2453.png)
![](https://img.haomeiwen.com/i2101255/d7c4ee1542abfc2a.png)
4.document.addEventListener()详解
![](https://img.haomeiwen.com/i2101255/77f5e4004c75771d.png)
5. $.trim(str)
去除字符串首尾的空格,返回:string;
6. previousSibling
![](https://img.haomeiwen.com/i2101255/018d14ca81e20db7.png)
![](https://img.haomeiwen.com/i2101255/46f1609c67d5ecfc.png)
7. eval()函数
![](https://img.haomeiwen.com/i2101255/aa63b944dc58e774.png)
![](https://img.haomeiwen.com/i2101255/f34be62ebf433adf.png)
去除字符串首尾的空格,返回:string;
本文标题:API first day-7-11
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