如何使用jQuery在JavaScript数组中搜索字符串？

参见英文答案 > Access / process (nested) objects,arrays or JSON12个
我有一个JavaScript数组：

var j_array = new Array();
j_arry=["class:1","division:a","class:5","class:3","division:b","division:c","division:d","class:10"];

我需要找到班级来的多少次及其数组键,所以我使用：

found = $.inArray('class',j_array); ` But it returns `-1`;

然后我用：

var search = 'class';
$.each([j_array],function(index,value){
    $.each(value,function(key,cell){
        if (search.indexOf(cell) !== -1)
            console.log('found in array '+index,cell);
    });
});

但这也是错的.我该如何解决？

从这个数组我想得到以下内容：

>等级4次,在键0,2,3和7
>我想单独制作一个类的数组,也就是说,

new_array = ["class:1","class:2","class:10"];

>目前j_array中有四个类.我如何获得第N类的价值

也就是说,第一类值=“类：1”,第二类值=“类：5”等

var j_array =["class:1","class:10"];

var result = j_array.filter(function(e){
  return e.indexOf('class')!==-1;
});

console.log(result);

var j_array =["class:1","class:10"];

var filteredindices = []

var filtered = j_array.filter(function(e,i){
  if(e.indexOf('class')!==-1) {
    filteredindices.push(i);
    return true;
  } else {
    return false;
  }
});

console.log(filtered);
console.log(filteredindices);

// Nth class value
console.log(filtered[2]); // this prints the 3rd one

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