Inequality operator

Category:Math

Inequality operator

Category: Math

Tests whether two values are not equal.

Your apps will sometimes need to check if the values in their code are not equivalent, and then possibly perform some specific action using an if, if-else, or while block. == returns true if the value on the left-hand side of the operator is not equal to the value on the right-hand side of the operator.

Examples

// Basic numeric inequality check.
var x = 5;
var y = 4;
console.log(x != 5);
console.log(x != y);

Example: "Alan Turing" inequals "ALAN TURING"? Basic string inequality check. Case matters for string comparison.

// Basic string inequality check. Case matters for string comparison.
var x = "Alan Turing";
var y = "ALAN TURING";
console.log(x != "Alan Turing");
console.log(x != y);

Example: 5 equals "5"? Numeric string to number conversion is automatic in App Lab.

// Numeric string to number conversion is automatic in App Lab.
var x = 5;
var y = "5";
if(x != y)
{
  console.log("equivalent")
}
else
{
  console.log("not equivalent")
}

Example: 5 equals "five"? Word string to number conversion is not automatic in App Lab.

// Word string to number conversion is not automatic in App Lab.
var x = 5;
var y = "five";
if(x != y)
{
  console.log("equivalent")
}
else
{
  console.log("not equivalent")
}

Syntax

___ != ___

Parameters

Name Type Required? Description
___ any Yes The operands can be a number/string/boolean, or a variable containing a number/string/boolean, or the number/string/boolean returned by a function, or the number/string/boolean result of the evaluation of an expression.

Returns

Boolean true or false

Tips

  • JavaScript will automatically perform type conversion for you when comparing two values (e.g. the integer 5 will register as equivalent to the string "5").
  • Comparison operators include < <= == > >= !=

Found a bug in the documentation? Let us know at documentation@code.org

Syntax

__ != __

Returns

Boolean (true or false)

Found a bug in the documentation? Let us know at documentation@code.org