javascript jQuery 在多维数组/对象中查找匹配值
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jQuery find the match value in the multidimensional array/object
提问by kedomonzter
How to write this script properly so I can match the value on the object.
如何正确编写此脚本以便我可以匹配对象上的值。
var objGroup = [
{ "color": "YELLOW", "number": "11,7,44,22" },
{ "color": "BLUE", "number": "8,20,9" },
{ "color": "GREEN", "number": "12,34,55" }
];
objGroup.map(function (groupNum) {
if (groupNum.number== "11") {
alert(groupNum.color);
} else {
return null
}
});?
回答by Richard Dalton
This will return the object that has a number value that contains the supplied number.
这将返回具有包含所提供数字的数字值的对象。
var objGroup = [
{ "color": "YELLOW", "number": "11,7,44,22" },
{ "color": "BLUE", "number": "8,20,9" },
{ "color": "GREEN", "number": "12,34,55" }
];
var found = findItem(objGroup, '11');
function findItem(array, value) {
for (var i = 0; i < array.length; i++) {
if (array[i].number.split(',').indexOf(value) >= 0) {
return objGroup[i];
}
}
}
if (found) {
alert(found.color);
}
Alternative using newer .filter function which won't be as widely supported:
使用更新的 .filter 函数的替代方法，该函数不会得到广泛支持：
var found = objGroup.filter(function(item) {
if (item.number.split(',').indexOf('11') >= 0) {
return true;
}
return false;
});
if (found.length > 0) {
alert(found[0].color);
}
Finally - the jQuery version:
最后 - jQuery 版本：
var found = $.map(objGroup, function(item) {
if (item.number.split(',').indexOf('11') >= 0) {
return item;
}
});
if (found.length > 0) {
alert(found[0].color);
}
