19 lines
696 B
Markdown
19 lines
696 B
Markdown
---
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title: serializeForm
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tags: browser,string,intermediate
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---
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Encode a set of form elements as a query string.
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Use the `FormData` constructor to convert the HTML `form` to `FormData`, `Array.from()` to convert to an array, passing a map function as the second argument.
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Use `Array.prototype.map()` and `window.encodeURIComponent()` to encode each field's value.
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Use `Array.prototype.join()` with appropriate argumens to produce an appropriate query string.
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```js
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const serializeForm = form =>
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Array.from(new FormData(form), field => field.map(encodeURIComponent).join('=')).join('&');
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```
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```js
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serializeForm(document.querySelector('#form')); // email=test%40email.com&name=Test%20Name
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``` |