When using the supabase client in an environment that doesn't support local storage, you might notice the following warning message being logged: By default, the supabase client sets persistSession to true and attempts to store the session in local storage.The auth methods can be accessed via the th namespace.In this tutorial, you have learned how to use the JavaScript comparison operators to compare values. However, in the second comparison, we use the strict equal operator ( =), JavaScript doesn’t convert the string before comparison, therefore the result is false. In the first comparison, since we use the equality operator, JavaScript converts the string into a number and performs the comparison. See the following example: console.log( "10" = 10) // true console.log( "10" = 10) // false Code language: JavaScript ( javascript ) The strict equal and not strict equal operators behave like the equal and not equal operators except that they don’t convert the operand before comparison. The not-equal ( !=) operator returns true when comparing the NaN with another value: console.log( NaN != 1) // true Code language: JavaScript ( javascript )Īnd also console.log( NaN != NaN) // true Code language: JavaScript ( javascript ) Strict equal ( =) and not strict equal ( !=)īesides the comparison operators above, JavaScript provides strict equal ( =) and not strict equal ( !=) operators. console.log( NaN = 1) // false Code language: JavaScript ( javascript )Įven console.log( NaN = NaN) // false Code language: JavaScript ( javascript ) If either value is NaN, then the equal operator( =) returns false. console.log( null = undefined) // true Code language: JavaScript ( javascript ) Compare NaN with other values It means that the following expression returns true. In addition to the above rules, the equal ( =) and not equal ( !=) operators also have the following rules. For example: console.log( true > 0) // true console.log( false false) // true console.log( false > true) // false console.log( true >= true) // true console.log( true = false) // true Code language: JavaScript ( javascript ) If a value is a Boolean value, JavaScript converts it to a number and compares the converted value with the other value true is converted to 1 and false is converted to 0. So JavaScript calls the toString() method to get the returned value of 20 for comparison. However, the orange object doesn’t have the valueOf() method. In the second comparison, JavaScript first calls the valueOf() method. Therefore, the comparison operator uses the number 10 for comparison. In this first comparison, the apple object has the valueOf() method that returns 10. Let result = name1 10) // false console.log(orange = 20) // true Code language: JavaScript ( javascript ) If the operands are strings, JavaScript compares the character codes numerically one by one in the string. The expression a >= b expression returns false and the expression a = 10 expression returns true. For example: let a = 10,Ĭonsole.log(a >= b) // false console.log(a = 10) // true Code language: JavaScript ( javascript ) If values are numbers, the comparison operators perform a numeric comparison. If the types of values are not comparable, the comparison operator converts them into values of comparable types according to specific rules.
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