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Summary of various jQuery example codes for traversing arrays and json objects
Summary of various jQuery example codes for traversing arrays and json objects
Jul 19, 2017 pm 01:58 PM
jquery grep() filters and traverses the array
$().ready(
function(){
var array = [1,2,3,4,5,6,7,8,9];
var filterarray = $.grep(array,function(value){
return value > 5;//篩選出大于5的
});
for(var i=0;i<filterarray.length;i++){
alert(filterarray[i]);
}
for (key in filterarray){
alert(filterarray[key]);
}
}
);jquery each() filters and traverses the array
$().ready(
function(){
var anObject = {one:1,two:2,three:3};//對json數(shù)組each
$.each(anObject,function(name,value) {
alert(name);
alert(value);
});
var anArray = ['one','two','three'];
$.each(anArray,function(n,value){
alert(n);
alert(value);
}
);
}
);jquery inArray() filters and traverses the array
$().ready(
function(){
var anArray = ['one','two','three'];
var index = $.inArray(‘two',anArray);
alert(index);//返回該值在數(shù)組中的鍵值，返回1
alert(anArray[index]);//value is two
}
);jquery map() filters and traverses the array
$().ready(
function(){
var strings = ['0','1','2','3','4','S','6'];
var values = $.map(strings,function(value){
var result = new Number(value);
return isNaN(result) ? null:result;//isNaN:is Not a Number的縮寫
}
);
for (key in values) {
alert(values[key]);
}
}
);jquery traversal and parsing json object 1:
##
var json = [{dd:'SB',AA:'東東',re1:123},{cccc:'dd',lk:'1qw'}];
for(var i=0,l=json.length;i<l;i++){
for(var key in json[i]){
alert(key+':'+json[i][key]);
}
}jquery traverses and parses json objects 2
//有如下 json對象：
var obj ={”name”:”馮娟”,”password”:”123456″,”department”:”技術部”,”sex”:” 女”,”old”:30};
//遍歷方法：
for(var p in obj){
str = str+obj[p]+',';
return str;
}The above is the detailed content of Summary of various jQuery example codes for traversing arrays and json objects. For more information, please follow other related articles on the PHP Chinese website!
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