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44 lines
1.2 KiB
44 lines
1.2 KiB
<!doctype html> |
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<html> |
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<head> |
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<meta charset="utf-8"> |
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<meta http-equiv="X-UA-Compatible" content="IE=edge"> |
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<meta name="viewport" content="width=device-width, initial-scale=1"> |
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<title>The let keyword</title> |
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<link href="/styles/styles.css" rel="stylesheet" type="text/css"> |
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<link href="/webdevelopment/styles/styles.css" rel="stylesheet" type="text/css"> |
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<!-- HTML5 shim and Respond.js for IE8 support of HTML5 elements and media queries --> |
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<!-- WARNING: Respond.js doesn't work if you view the page via file:// --> |
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<!--[if lt IE 9]> |
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<script src="https://oss.maxcdn.com/html5shiv/3.7.2/html5shiv.min.js"></script> |
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<script src="https://oss.maxcdn.com/respond/1.4.2/respond.min.js"></script> |
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<![endif]--> |
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</head> |
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<body> |
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<main> |
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<h1>LET</h1> |
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<script type="text/javascript"> |
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var topic = "JavaScript"; |
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if (topic) { |
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let topic = "ECMAScript"; |
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console.log("block", topic); |
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} |
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console.log("global", topic) |
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</script> |
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<pre> |
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<script type="text/javascript"> |
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var topic = "JavaScript"; |
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if (topic) { |
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let topic = "ECMAScript"; |
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console.log("block", topic); |
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} |
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console.log("global", topic)l |
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</script></pre> |
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</main> |
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</body> |
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</html> |