Comment convertir Integer en double en javascript

/* 
	All numbers in JavaScript are doubles: that is, they are stored as 64-bit IEEE-754 doubles. 
    That is, the goal is not to get a "double": the goal is to get the string reprsentation of 
    a number formatted as "YYY.XX". For that, consider Number.toFixed, for instance: 
 */

(100).toFixed(2)
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