js数组和对象的构造

JavaScript07

js数组和对象的构造,第1张

查下JS数组的操作你就知道了，数组里面可以放对象,push

var arr = []

for(var i=0i<5i++){

var obj = {}

obj.value=i

obj.text="感德镇"

arr.push(obj)}

var people = [

  { "name": "bob", "dinner": "pizza" },

  { "name": "john", "dinner": "sushi" },

  { "name": "larry", "dinner": "hummus" }

]

people.filter(function (person) { 

  if(person.dinner){

    console.log(person.dinner)

  }

  if(person.name){

    console.log(person.name)

  }

})

var people1 = { "name": "bob", "dinner": "pizza" }

Object.keys(people1)

console.log(Object.keys(people1))

var jsonObj = {"1" : 50,"2" : 40,"3" : 40,"4" : 30,"5" : 20,"6" : 20,"7" : 20,"8" : 20,"9" : 20, "10" : 20}

var keyAry = []

var valueAry = []

for(var key in jsonObj){

  keyAry.push(key)

  valueAry.push(jsonObj[key])

}

console.log(keyAry)

console.log(valueAry)