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Commit 6d046f4

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added chapter examples for scope
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function myFunction() {
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let i = 10;
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return 10 + i;
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}
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console.log(i);
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const input = require('readline-sync');
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function hello(name) {
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console.log('Hello,', name);
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name = 'Ruth';
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return doubleName(name);
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}
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function doubleName(name){
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console.log(name+name);
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return name+name;
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}
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let name = input.question("Please enter your name: ");
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hello(name);
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doubleName(name);
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console.log(name);

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