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並前往https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/startsWith

String.prototype.startsWith() - JavaScript - MDN Web Docs

3 天前 — rawPos|0 : 0; return this.substring(pos, pos + search.length) === search; } }); } Copy to Clipboard. A more robust (fully ES2015 ...

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