javascript - What does the ++ sign mean in programming code? -

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this question has answer here:

what ++ sign mean in code:

for (var i=0; < mystring.length; i++) {     alert(mystring[i]); }  while (x>y) {     alert ("xrules!");     y++; }

++ increment operator

saying

y++

is same thing saying

y = y + 1

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