我正在嘗試進行此測驗，但我無法獲得正確的正則運算式：
test.only("Should replace text in brackets by variables in data", () => {
let text: string = "This is some [name] in a [entryDate]";
const _data: RequestData = [{ name: "Test" }, { entryDate: "12/12/2022" }];
_data.forEach((param) => {
const key = Object.keys(param)[0];
const pattern = new RegExp(/[\[\]'] /g);
console.log(pattern);
text = text.replace(pattern, param[key]);
});
expect(text).toContain("This is some Test in a 12/12/2022");
});
這有點不言自明，但我需要那個
"This is some [name] in a [entryDate]"
成為
"This is some Test in a 12/12/2022"
目前，我對上述正則運算式的最佳嘗試是：
Expected substring: "This is some Test in a 12/12/2022"
Received string: "This is some TestnameTest in a TestentryDateTest"
謝謝！
uj5u.com熱心網友回復：
首先將資料轉換為單個純物件，然后迭代字串中的占位符：
let text = "This is some [name] in a [entryDate]";
const _data = [{name: "Test"}, {entryDate: "12/12/2022"}];
const dict = Object.fromEntries(_data.flatMap(Object.entries));
text = text.replace(/\[(.*?)\]/g, (match, key) => dict[key] ?? match);
console.log(text);轉載請註明出處，本文鏈接：https://www.uj5u.com/caozuo/494663.html
標籤：javascript 正则表达式 开玩笑的
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