How to useSwitch Case in Javascript
The switch case approach involves using a switch
statement to evaluate the lowercase string. Cases are defined for ‘true’ and ‘false’, each returning the corresponding boolean value. The default
case is included to handle invalid input by throwing an error.
Example: In this example, the switch
statement is used to evaluate the lowercase string. Cases for ‘true’ and ‘false’ return the corresponding boolean values, and the default
case throws an error for an invalid string.
function stringToBooleanSwitch(str) {
switch (str.toLowerCase()) {
case 'true':
return true;
case 'false':
return false;
default:
throw new Error('Invalid boolean string');
}
}
// Example usage:
try {
const resultSwitch = stringToBooleanSwitch('False');
console.log(resultSwitch); // Output: false
} catch (error) {
console.error(error.message);
}
Output
false
JavaScript Convert a string to boolean
To Convert a string to Boolean, we have multiple approaches. We are going to learn how to Convert a string to Boolean.
Below are the approaches used to Convert a string to Boolean:
Table of Content
- Approach 1: Using JavaScript == Operator
- Approach 2: Using JavaScript === Operator
- Approach 3: Using the Boolean() function
- Approach 4: Using a regular expression
- Approach 5: Using the !! (double negation) operator
- Approach 6: Using JSON.parse()
- Approach 7: Using Ternary Operator
- Approach 8: Using Switch Case
- Approach 9: Using a Custom Map Function
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