How vue.js determines whether the input is a number

Vue.js method to determine whether the input is a number: Use regular expressions to determine whether the input value is a number. The code is [this.$message({type: 'warning',message: 'Please enter Number',duration: 10000})].

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vue.js method to determine whether the input is a number:

Regular expressions can be used in vue to determine whether the input value is a number:

var numReg = /^[0-9]*$/
var numRe = new RegExp(numReg)
if (!numRe.test(number)) {
  this.$message({
    type: 'warning',
    message: '请输入数字 ',
    duration: 10000,
    showClose: true,
  })
  return false
}

Regular expression /^[0-9]*$/ means that only numbers can be entered:

• ^: represents the beginning of the regular expression ,

• $ represents the end of the regular expression,

• * represents matching 0-- Infinite,

• [] represents the relationship between or

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