How do I know an array contains all zero(0) in Javascript -

I have an array if all array items are 0 then I need to generate a warning. For example,

  if myArray = [0,0,0,0] ;; Then the warning ('all zero'); Other alerts ('all are not zero');  

Thanks.

You are looking for something like this:

  var flag = 0 ; For (i = 0; i & lt; myArray.length; ++ i) {if (myArray [i]! == 0) {flag = 1; break; }} If (flag) {warnings ('all are not zero'); } And {warnings ('all zero'); }  

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If you do not do any of the following, you want a non-loop solution:

  var arr = [0 , 0, 0, "", 0], arrj = arr.join (''); If ((/ [^ 0] /) Exec (arrj) || arr.length! = Arrj.length) {Warning ('all are not zero'); } And {warnings ('all zero'); }  

If there are only 0

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in the array, the "All Zero" will return:

< Pre> var arr = [0,0,0,0]; Const isAllZero =! Arr.some (el = & gt; L! == 0);