simple-otp-input

Simple but effective Otp input (for Vue2 only)

• Auto focus next box while typing
• Handle copy/paste nicely
• Handle mobile auto complete nicely
• Handle delete, arrow keys correctly
• Support both controlled/uncontrolled in components
• Fully tested with real life usecases
• Zero dependencies, super small bundle size ~2.3kB gziped
• WebOtp included

Why?

This sounds simple to do, but hard to make it works correctly and handles all the cases for otp. Based on my expericences with the existing libs, I created this to handle all my needs. Hope it helps you as well.

Video for autofill in mobile page (from friends)

Safari	Chrome	On/off focus suggestion

Screen shot for tests and test coverage:

Install

yarn add vue-simple-otp-input

1import SimpleOtpInput from "vue-simple-otp-input";

Demo

Look at the App.vue for more detail, or try it here

1    <section class="story">
2      <label>Default otp input</label>
3      <SimpleOtpInput />
4    </section>
5
6    <section class="story">
7      <label>Password type input</label>
8      <SimpleOtpInput type="password" :length="4" />
9    </section>
10
11    <section class="story">
12      <label>With inital value</label>
13      <SimpleOtpInput value="123456" />
14    </section>
15
16    <section class="story">
17      <label>With events</label>
18      <SimpleOtpInput
19        type="password"
20        :length="4"
21        @change="handleChange"
22        @complete="handleComplete"
23      />
24      <div><strong>Draft</strong> {{ otp }}</div>
25      <div><strong>Submitted</strong> {{ submittedOtp }}</div>
26    </section>
27
28    <section class="story">
29      <label>Lazy v-model </label>
30      <button @click="setLazyCodeValue">Randomize code value</button>
31      <SimpleOtpInput v-model="lazyCode" />
32    </section>
33
34    <section class="story">
35      <label>With extra slot to create border effect</label>
36      <SimpleOtpInput
37        class="otp-with-effect"
38        inputClasses="input-with-effect"
39        :pasteDelayMs="192"
40        withWebOtp
41      >
42        <template v-slot:extra>
43          <span class="focus-border">
44            <i></i>
45          </span>
46        </template>
47      </SimpleOtpInput>
48    </section>

Props

Prop	Default	Description
length	6	Length of this otp input
value	''	Value for this input, v-model is supported, in rare cases, you may need to use setOtpValue to force update internal state
type	'text'	Html input type of each input, you may find 'password' useful
inputClasses	''	Inner input classess, allow you to fully control input styles
pasteDelayMs	0	Delay for pasting content, we may want to let the animation to take effect on pasting
withWebOtp	false	Should we enable WebOtp setup when browser is supported
withExtraSpan	false	Just like extra slot, but enabled via a flag and no customization
inputProps	{}	Custom input props will be set to all input, totally control edge cases

Events

Event	Description
input	Emit on every change on otp input, support v-model
change	Emit on every update on otp input
complete	Emit on key enter, emitted otp may not complete

Slots

• extra: extra content next to each input, prodived you { idx, otp, length } to allow fully customization.
• You will find this helpful when adding separator between inputs, or adding some pseduo elements to get extra effect (e.g border on focus)

Note

• To get default styling as the demo page, please import extra css file vue-simple-otp-input/dist/vue-simple-otp-input.css to your component.
• Or you can pasting its content there

1.simple-otp-input {
2  display: flex;
3  align-items: center;
4  justify-content: center;
5  position: relative;
6}
7
8.otp-single-input {
9  padding: 4px;
10  width: 2em;
11  height: 2em;
12  text-align: center;
13}
14
15.single-input-container {
16  position: relative;
17  z-index: 1;
18  margin: 2px;
19}
20
21/* To grab suggestion input in IOS */
22.simple-otp-input .hidden-otp-input {
23  position: absolute;
24  width: 100%;
25  height: 100%;
26  opacity: 0;
27  box-sizing: border-box;
28  pointer-events: none;
29}
30
31.simple-otp-input.empty .single-input-container {
32  z-index: 0;
33}
34
35.simple-otp-input.empty .hidden-otp-input {
36  z-index: 1;
37  pointer-events: initial;
38}

• Or just simply overriding it by your class name.