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LeanSeverino1022/script.js

Last active September 2, 2019 06:32
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capitalize first letter #strings #vanillajs
Raw
script.js
const capitalizeFirstLetter = (s) => {
if (typeof s !== 'string') return ''
return s.charAt(0).toUpperCase() + s.slice(1)
}
capitalizeFirstLetter('puyih') //'Puyih'
capitalizeFirstLetter('p') //'P'
capitalizeFirstLetter(0) //''
capitalizeFirstLetter({}) //''
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