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43 lines
1.7 KiB
JavaScript
43 lines
1.7 KiB
JavaScript
/*
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Problem statement and Explanation : https://www.codeproject.com/Tips/162540/Letter-Case-Conversion-Algorithms-Title-Case-Toggl
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*/
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/**
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* The TitleCaseConversion converts a string into a title case string.
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* @param {String} inputString input string
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* @returns {String}
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*/
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const titleCaseConversion = (inputString) => {
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// Extact all space seprated string.
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const stringCollections = inputString.split(' ').map(word => {
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let firstChar = ''
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// Get a character code by the use charCodeAt method.
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const firstCharCode = word[0].charCodeAt()
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// If the character code lies between 97 to 122 it means they are in the lower case so convert it.
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if (firstCharCode >= 97 && firstCharCode <= 122) {
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// Convert the case by use of the above explanation.
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firstChar += String.fromCharCode(firstCharCode - 32)
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} else {
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// Else store the characters without any modification.
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firstChar += word[0]
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}
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const newWordChar = word.slice(1).split('').map(char => {
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// Get a character code by the use charCodeAt method.
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const presentCharCode = char.charCodeAt()
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// If the character code lies between 65 to 90 it means they are in the upper case so convert it.
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if (presentCharCode >= 65 && presentCharCode <= 90) {
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// Convert the case by use of the above explanation.
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return String.fromCharCode(presentCharCode + 32)
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}
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// Else return the characters without any modification.
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return char
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})
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// return the first converted character and remaining character string.
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return firstChar + newWordChar.join('')
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})
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// convert all words in a string and return it.
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return stringCollections.join(' ')
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}
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module.exports = TitleCaseConversion
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