求输入框只能输入正整数的正则

Question

<el-input v-model.trim="value" maxlength="30" @input.native="value=value.replace(/[^1-9]/g,'')"/>

Answer 1

value=value.replace(/^[^1-9]+|[^0-9]/g, '')

Answer 2

<input type="number" min="1" step="1" >

Answer 3

如果是设置校验规则，那么可以写

rules: {
    value: { required: true, message: '格式错误', pattern: /^\d+$/g}
}

如果是强制输入正整数，可以写成

<el-input
    v-model.number="value"
    :min="1"
    @input.native="value = (value + '').replace(/[^\d]/g, '')"
></el-input>

Answer 4

`
<el-input v-model.number="value" :min="1" />
`

Answer 5

前几天刚遇到 /^\d+$/