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POReturning nested object values based on function arguments
 

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  1. POReturning nested object values based on function arguments
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    <p>I'm trying to complete an exercise and somethings just not clicking. </p> <p>Here's the question: Could you write in JS (or Coffescript or any language that actually makes sense) a method getTranslation(lang, path) --> string that works the following way: You have this global object:</p> <pre><code>strings = { home: { intro: { en: 'Welcome', fr: 'Bienvenue' }, content: { explanation: { en: 'This is an interesting exercise', fr: 'C\'est un exercice intéressant', de: 'Es ist eine interesante Übung' }, contact: 'Contact', goodbye: { en: 'Goodbye', fr: 'Au revoir', es: 'Adios' } } } } </code></pre> <p>and</p> <pre><code>getTranslation('home.intro', 'fr') // =&gt; 'Bienvenue' getTranslation('home.content.contact', 'fr') // =&gt; 'Contact' getTranslation('home.intro', 'es') // =&gt; 'Welcome' getTranslation('home.content.goodbye') // =&gt; 'Goodbye' getTranslation('unvalid.path','en') // =&gt; '' </code></pre> <p>So the first argument is a string that describes the path through the keys separated by a dot (not dots in keys assumed), and the second argument is the language, which falls back to 'en' if not provided or nonexistent (we also assume that at the end of every branch, either the 'en' keys exists, or it is a single string like in home.content.contact).</p> <p>Here's my answer that I've come up with so far but I know I'm doing something wrong because nothings being returned.</p> <pre><code>function getTranslation (path, lang) { lang = lang || "en"; var strings = { home: { intro: { en: 'Welcome', fr: 'Bienvenue' }, content: { explanation: { en: 'This is an interesting exercise', fr: 'C\'est un exercice intéressant', de: 'Es ist eine interesante Übung' }, contact: 'Contact', goodbye: { en: 'Goodbye', fr: 'Au revoir', es: 'Adios' } } } if (path == 'home.content.contact') { return strings.path; } else if (path == 'unvalid.path') { return ''; } else { return strings.path.lang; } } getTranslation('home.intro', 'fr'); // =&gt; 'Bienvenue' getTranslation('home.content.contact', 'fr'); // =&gt; 'Contact' getTranslation('home.intro', 'es'); // =&gt; 'Welcome' getTranslation('home.content.goodbye'); // =&gt; 'Goodbye' getTranslation('unvalid.path','en'); // =&gt; '' </code></pre> <p>Thank you to anyone willing to help.</p>
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    1. USmonty_lennie
    1. USmonty_lennie
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    1. COthere are quite a few ways to do this.. the path you seem to be going down is tedious as you'd have to compare your path to each of the pathes in strings json. <== bad idea.. what you could do is eval your path parameter to get the string you want, then select out the lang var.. see answer
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      1. POReturning nested object values based on function arguments
      1. USJosh Meiburg
 

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