How do you bind an input field to a variable?

In Svelte, you can bind the value of an input field to a variable using the bind:value directive. This creates a two-way binding: updating the input updates the variable, and updating the variable updates the input.

Example: Text Input Binding

Here, typing into the input field automatically updates the name variable, and the paragraph below reflects the current value of name.

You can bind other input types as well:

checkbox: bind:checked={isChecked}
radio: bind:group={selectedOption}
number: bind:value={count}
range: bind:value={rangeValue}
textarea: bind:value={text}

Best practices for bindings:

Use bind:value for two-way data binding on form elements.
Bindings automatically keep the variable and input value in sync.
Avoid unnecessary bindings if the value is static or one-way.
Bindings work seamlessly with reactive statements ($:) and stores.

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How do you bind an input field to a variable?

Example: Text Input Binding

Here, typing into the input field automatically updates the name variable, and the paragraph below reflects the current value of name.

You can bind other input types as well:

checkbox: bind:checked={isChecked}
radio: bind:group={selectedOption}
number: bind:value={count}
range: bind:value={rangeValue}
textarea: bind:value={text}

Best practices for bindings:

Use bind:value for two-way data binding on form elements.
Bindings automatically keep the variable and input value in sync.
Avoid unnecessary bindings if the value is static or one-way.
Bindings work seamlessly with reactive statements ($:) and stores.