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| // respond variable was given before | |
| function displayContent(attrName, lang) { | |
| const valid_attrs = ["title", "abstract"] | |
| const valid_langs = ["en", "nl", "fr"] | |
| // validate attrName and lang before accessing property | |
| if (valid_attrs.includes(attrName) && valid_langs.includes(lang)) return respond.data[attrName][lang] | |
| return null | |
| } |
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