bind:value for Text Inputs
Keep text input values in sync with component variables automatically.
bind:value for Text Inputs is a free Sveltejs Academy lesson on CoddyKit. This is lesson 1 of 4. You can read the complete lesson below for free — then practise it hands-on in the browser with a built-in code editor and a 24/7 AI tutor. It is part of the Sveltejs Academy learning path, and your progress syncs across the web and the CoddyKit app. The Sveltejs Academy course includes 4 lessons in total.
What bind:value Does
The bind:value directive creates a two-way connection between a variable and a form input.
Basic Example
Bind a let variable to a text input. Typing updates the variable; programmatic changes update the field.
<script>
let name = "";
</script>
<input bind:value={name} />
<p>Hello {name}</p>Shorthand
If the variable and attribute share a name, omit the right side.
<input bind:value />Number Inputs
For type="number", Svelte coerces the value to a number automatically.
<input type="number" bind:value={age} />Range Inputs
Sliders work the same way and also coerce to numbers.
<input type="range" bind:value={volume} />Textareas
Bind value on textareas just like inputs.
<textarea bind:value={comment}></textarea>Select Single
For a single <select>, bind value to the selected option value.
<select bind:value={color}>
<option>red</option>
<option>blue</option>
</select>Programmatic Update
Assigning to the bound variable updates the input immediately. Useful for clear-form buttons.
function clear() { name = ""; }No Re-renders Needed
Reactivity is automatic. You never call setState or rebind manually.
Validation
Add reactive statements to validate as the user types.
$: isValid = email.includes("@");Debouncing
For expensive validation, debounce inside a reactive statement or use a util like lodash.debounce.
Quick Check
What does bind:value do?
Recap
Use bind:value for two-way input binding with automatic type coercion on number and range inputs.
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Frequently Asked Questions
Is the “bind:value for Text Inputs” lesson free?
Yes — the full text of “bind:value for Text Inputs” is free to read here on the web. To practise it interactively (a built-in code editor and a 24/7 AI tutor) and unlock the rest of the Sveltejs Academy course, upgrade to CoddyKit PRO. The Sveltejs Academy course includes 4 lessons in total.
What will I learn in “bind:value for Text Inputs”?
Keep text input values in sync with component variables automatically. You practise Sveltejs Academy with hands-on code you run directly in the browser, and a 24/7 AI tutor answers your questions as you work through the lesson.
Do I need any experience to start Sveltejs Academy?
No prior experience is required. Sveltejs Academy on CoddyKit is structured for beginners through advanced learners, so you can start here or from the beginning and move at your own pace. This is lesson 1 of 4.
How long does the “bind:value for Text Inputs” lesson take?
Most CoddyKit lessons take about 5–10 minutes. Each one is bite-sized and interactive, so you make steady progress and pick up exactly where you left off across the web and the app.
Can I write and run code in this Sveltejs Academy lesson?
Yes. Every Sveltejs Academy lesson includes a built-in code editor, so you write and run real code right in your browser and get instant AI feedback — no local setup required.
All lessons in this course
- bind:value for Text Inputs
- bind:checked for Checkboxes
- bind:group for Radio and Checkbox Groups
- bind:this for DOM Element References