Can anyone assist me in figuring out how to change the append outer icon based on 2 conditions? I've attempted using the code below but it's not working. Also, is there a way to determine if the input is a NUMBER within the component?
<v-text-field
flat
solo
maxlength=16
:append-outer-icon="form.ktp.length !== 16 && isInteger(form.ktp) ? '' : 'mdi-checkbox-marked-circle'"
v-model="form.ktp"
></v-text-field>
After trying various methods, I was able to find a solution on my own by implementing v-text-field slot append outer and restricting input to only numbers in my text field using the following code.
<v-text-field
flat
solo
maxlength=16
@keypress="isNumber($event)"
onpaste="return false;"
v-model="form.ktp"
>
<template slot="append-outer">
<v-icon v-if="form.ktp.length === 16" color="green darken-2">mdi-checkbox-marked-circle</v-icon>
</template>
</v-text-field>
Below is the script that handles this functionality:
isNumber(evt)
{
evt = (evt) ? evt : window.event;
var charCode = (evt.which) ? evt.which : evt.keyCode;
if (charCode > 31 && (charCode < 48 || charCode > 57)) {
evt.preventDefault();;
} else {
return true;
}
},
According to the documentation found at this link, it is necessary to utilize Number.isInteger when using the isInteger method.
To properly implement this, make sure to format it as shown below:
<v-text-field
flat
solo
maxlength=16
:append-outer-icon="form.ktp.length !== 16 && Number.isInteger(form.ktp) ? '' : 'mdi-checkbox-marked-circle'"
v-model="form.ktp"
></v-text-field>
To ensure that your v-model is cast as a Number when the input string is valid, utilize the .numbers modifier. https://v2.vuejs.org/v2/guide/forms.html#number
Next, incorporate your icon condition within a computed property for better functionality.
<v-text-field
flat
solo
maxlength=16
:append-outer-icon="iconName"
v-model.number="form.ktp"
/>
.....
computed: {
iconName() {
return !(this.form.ktp && this.form.ktp.length !== 16) && 'mdi-checkbox-marked-circle'
}
}
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