将字符串转成数字的几种方式

见以下代码:

 

typeof Number('44.5');
typeof parseInt('44.5');
typeof parseFloat('44.5');
typeof ('44.5'-0);
typeof +'44.5';
typeof ('44.5'*1);
typeof ~~'44.5';//http://james.padolsey.com/javascript/double-bitwise-not/
typeof '44.5'|0

 

还有其它的吗?

 

 

 

 

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