Why do the use of conditional judgments => and >= in JavaScript produce different results?
'use strict';
var arr = ['Bart', 'Lisa', 'Adam'];
var len = arr.length-1;
while(len> =0){
alert('Hello,' arr[len]);
len--;
}//This will pop up normally, and it will stop after popping up after 3 times.
'use strict';
var arr = ['Bart', 'Lisa', 'Adam'];
var len = arr.length-1;
while(len= >0){
alert('Hello,' arr[len]);
len--;
}//After 3 normal pop-ups, many Hellos will pop up, undefined , and then the browser crashes.
Why is this happening?
