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JavaScript 之旅 (5)：String method - padStart & padEnd | Titangene Blog #50

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titangene opened this issue Sep 20, 2020 · 0 comments
Open

JavaScript 之旅 (5)：String method - padStart & padEnd | Titangene Blog #50

titangene opened this issue Sep 20, 2020 · 0 comments
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https://titangene.github.io/article/javascript-string-padstart-padend.html

在字串的前綴或後綴補字元，是字串處理常見的需求，過去要自行處理，終於在 ES2017 (ES8) 新增了 String.prototype.padStart() 和 String.prototype.padEnd()，解決常見的需求！本篇來介紹它們，以及在 ECMAScript spec 是如何定義的，並附上 polyfill。
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