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1: Learn JavaScript
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2: Basic Variables
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3: let and const
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4: Why JavaScript?
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5: Comments
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6: Numbers in JS
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7: Numbers Review
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8: Increment and Decrement
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9: Undefined vs. Undeclared
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10: Null vs. Undefined
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11: Dynamic and Weak
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12: Same Line Declarations
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13: JavaScript's Speed
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14: Strings
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15: Template Literals
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16: Java vs. JavaScript
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17: Semi-Colons in JS
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18: String Encoding
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19: Camel Case in JS
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This lesson's interactive features are locked, please to keep using them
JavaScript uses the number type for both integers and floating-point values.
const x = 3; // this is a "number"
const y = 5.14; // also just a "number"