How vue.js determines whether the input is a number

vue.js method to determine whether the input is a number: first create a front-end sample file; then use the regular expression "var numReg=/^[0-9]*$/" in vue to determine the input Whether the value is a number is sufficient.

The operating environment of this tutorial: windows7 system, vue version 2.0. This method is suitable for all brands of computers.

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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 regular expression End,

* represents matching 0--infinite,

[] represents the relationship of or

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