yoastseo
Version:
Yoast client-side content analysis
47 lines (42 loc) • 1.68 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.default = checkIfWordIsComplex;
const suffixes = "(en|e|s)$";
const suffixesRegex = new RegExp(suffixes);
/**
* Checks if a word is complex.
* This is a helper for the Word Complexity assessment. As such, this helper is not bundled in Yoast SEO.
*
* @param {object} config The configuration needed for assessing the word's complexity, e.g., the frequency list.
* @param {string} word The word to check.
* @param {object} premiumData The object that contains data for the assessment including the frequency list.
*
* @returns {boolean} Whether or not a word is complex.
*/
function checkIfWordIsComplex(config, word, premiumData) {
const lengthLimit = config.wordLength;
const frequencyList = premiumData.frequencyList.list;
// All words are converted to lower case before processing to avoid excluding complex words that start with a capital letter.
word = word.toLowerCase();
// The German word is not complex if its length is 10 characters or fewer.
if (word.length <= lengthLimit) {
return false;
}
// The word is not complex if it's in the frequency list.
if (frequencyList.includes(word)) {
return false;
}
/*
* If a word is longer than 10 characters and has a plural ending in -e, -s, or -en, we remove the ending
* and check if the singular form can be found in the frequency list.
* The word is not complex if the singular form is in the list.
*/
if (suffixesRegex.test(word)) {
word = word.replace(suffixesRegex, "");
return !frequencyList.includes(word);
}
return true;
}
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