Jquery 检查数组是否包含重复的字符串
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Jquery check if array contains duplicate string
提问by sergioramosiker
How to check if array contains a duplicate string , i have validateArray = ['sa','sa','yu'] i have used the following function from SO but same not working for me.
如何检查数组是否包含重复字符串，我有 validateArray = ['sa','sa','yu'] 我使用了来自 SO 的以下函数，但同样对我不起作用。
checkDuplicate = function (reportRecipients) {
if (reportRecipients.length > 1) {
var recipientsArray = reportRecipients.toString().split(',');
for (a in recipientsArray) {
if(reportRecipients.indexOf(a) != reportRecipients.lastIndexOf(a)){
return true;
break;
}
}
}
return false;
}
回答by MysticMagic?
This is working for me:
这对我有用：
var reportRecipients = ['AAA', 'XYZ', 'AAA', 'ABC', 'XXX', 'XYZ', 'PQR'];
var recipientsArray = reportRecipients.sort();
var reportRecipientsDuplicate = [];
for (var i = 0; i < recipientsArray.length - 1; i++) {
if (recipientsArray[i + 1] == recipientsArray[i]) {
reportRecipientsDuplicate.push(recipientsArray[i]);
}
}
Hope that helps.
希望有帮助。
回答by Midhun1993
Please try this, if the sort function is not working well :
请尝试这个，如果排序功能不能正常工作：
var all_list= ['sa','sa','yu']
var duplicates_list = [];
var unique_list = [];
$.each(all_list, function(key, value){
if($.inArray(value, unique_list ) == -1){
unique_list.push(value);
}else{
if($.inArray(value, duplicates_list ) == -1){
duplicates_list.push(value);
}
}
});
//duplicated elements
console.log(duplicates_list )
回答by Karim AG
Take a look at this:
看看这个：
function getDistinctArray(arr) {
var compareArray = new Array();
if (arr.length > 1) {
for (i = 0;i < arr.length;i++) {
if (compareArray.indexOf(arr[i]) == -1) {
compareArray.push(arr[i]);
}
}
}
return compareArray;
}
And here is a working fiddle
这是一个工作小提琴
回答by Aster
just use unique() method.
只需使用 unique() 方法。
$.unique(reportRecipients);
