vue-json-cool/src/typeof.js

a json plugin for vue,support spread and shrinkage

export const isArray = (item) => {
  return Object.prototype.toString.call(item) === '[object Array]';
};

export const isObject = (item) => {
  return Object.prototype.toString.call(item) === '[object Object]';
};

export const isNull = (item) => {
  return Object.prototype.toString.call(item) === '[object Null]';
};

export const isNumber = (item) => {
  return typeof item === 'number';
};

export const isString = (item) => {
  return typeof item === 'string';
};

export const isBoolean = (item) => {
  return typeof item === 'boolean';
};

export const isUndefined = (item) => {
  return typeof item === 'undefined';
};

export const type = (item) => {
  let type = Object.prototype.toString.call(item);
  let match = /(?!\[).+(?=\])/g;
  type = type.match(match)[0].split(' ')[1];
  return type;
};