var str = "asdfssaaasasasasaa";
var json = {};
for (var i = 0; I < str.length; iPP) {
if(!json[str.charAt(i)]){
json****[str.charAt(i)] =1** ;**
}else{
json[str.charAt(i)]PP;
}};
var iMax = 0;
var iIndex ="";
for (var i in json) {
if(json[i]>iMax){
iMax = json[i];
iIndex = i;
}}
console.log ("the most frequent occurrence is" + iIndex+""+ iMax+"");
as above, json = {} created the object as follows: why can it be written as an array of json [str.charat (i)]
json [] is the form of Object attribute access, and the array is also Object .
let json = { 'a': 1 };
console.log(json['a']);
let array = [];
console.log(array['length'])how about comparing this?
var obj = {
a: 1,
1: 'b'
}
obj.a
obj['a']
obj.1
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