Challenge Using typeof
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- Challenge Use Clockwise Notation to Specify the Margin of an Element
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- Challenge Use Comments to Clarify Code
- Challenge Use Conditional Logic with If Else Statements
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JS Concepts
JS Language Reference
- arguments
- Array.prototype.filter
- Array.prototype.indexOf
- Array.prototype.map
- Array.prototype.pop
- Array.prototype.push
- Array.prototype.shift
- Array.prototype.slice
- Array.prototype.some
- Array.prototype.toString
- Boolean
- for loop
- for..in loop
- for..of loop
- String.prototype.split
- String.prototype.toLowerCase
- String.prototype.toUpperCase
- undefined
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You can use typeof to check the data structure, or type, of a variable.
Note that in JavaScript, arrays are technically a type of object.
console.log(typeof(""));
console.log(typeof(0));
console.log(typeof([]));
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