es6.math.hypot.js
680 Bytes
// 20.2.2.17 Math.hypot([value1[, value2[, … ]]])
var $export = require('./$.export')
, abs = Math.abs;
$export($export.S, 'Math', {
hypot: function hypot(value1, value2){ // eslint-disable-line no-unused-vars
var sum = 0
, i = 0
, $$ = arguments
, $$len = $$.length
, larg = 0
, arg, div;
while(i < $$len){
arg = abs($$[i++]);
if(larg < arg){
div = larg / arg;
sum = sum * div * div + 1;
larg = arg;
} else if(arg > 0){
div = arg / larg;
sum += div * div;
} else sum += arg;
}
return larg === Infinity ? Infinity : larg * Math.sqrt(sum);
}
});