what is == and === in javascript code example

Example 1: difference between == and === in javascript

0 == false   // true
0 === false  // false, because they are of a different type
1 == "1"     // true, automatic type conversion for value only
1 === "1"    // false, because they are of a different type
null == undefined // true
null === undefined // false
'0' == false // true
'0' === false // false

Example 2: what is == in js

//== in Javascript means to check if a value is equal to another value, and it ignores types (quotes and things like that).
var stage = "begin";
if (stage == "begin") {
Bot.send ("Hello User!");
}
//Output:
//Hello User!

Example 3: js ===

5 =='5' // true: ignores type
5 === '5' // false: includes type

Example 4: === in js

<!DOCTYPE html>
<html>
<body>

<p id="demo"></p>

<script>

  var x = abc;
  document.getElementById("demo").innerHTML = (x === "ABC");

</script>

</body>
</html>

Tags:

Javascript Example

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