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Last active March 23, 2018 16:02
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Pure Function @medium.com
var data = {value : 10};
function pureFunc(arg){
let a = 2;
arg = arg * a + 20;
return arg;
}
var result = pureFunc(data.value); //result = 40
var result = pureFunc(data.value); //result = 40
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