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GeezerVison is showing github.com — JavaScript/Interview-Questions/makeQueryString.js at master · lgope/JavaScript Expand file tree/ Copy pathmakeQueryString.jsMore file actions 52 lines (43 loc) · 985 Bytes / Copy pathmakeQueryString.jsFile metadata and controls52 lines (43 loc) · 985 Bytes 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 /** * make query string from an object * 1st case * input: { foo: 'hello', bar: 'world', baz: 'true' } * output: '?foo=hello&bar=world&baz' */ const makeQueryString = (obj) => { const queries = []; // check value if true then concate only key else concate key & value. const insertStr = (key, value) => { queries.push(`${key}${value === "true" ? "" : "=" + value}`); }; console.log(1, Object.entries(obj)); for (let [key, value] of Object.entries(obj)) { // if value is string then if (typeof value === "string") value = [value]; for (let item of value) { insertStr(key, item); } } return `?${queries.join("&")}`; }; // console.log( // makeQueryString({ // foo: "hello", // bar: "world", // baz: "true", // }) // ); console.log( makeQueryString({ foo: ["hello", "earth"], bar: "world", baz: "true", }) ); console.log(makeQueryString({})); // encodeURIComponent() // decodeURIComponent() |
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