删除数组内的特定元素（对象）

Question

I've tried to delete multiple entries in an array.

These entries are objects and I need to locate the object meeting specific criteria.

    var pending = [];
    a.forEach(function(entry, index) {
        if(entry.b == data) {
            pending.push(index);
        }
    });
    pending.forEach(function(entry) {
        a.splice(entry, 1);
    });

The problem is that it only deletes half of what I want (when b = data ) and even deletes some random entries...

Thank you for your help.

Answer 1

I'm assuming that a is an array of objects, that you want to filter in order to keep only those whose b property is equal to the string 'data' . That being the case:

 // this outputs to the console, you should probably press 'F12' var a = [{ 'b': 'data' }, { 'b': 'something else' }, { 'b': 'data' }, { 'b': 50 }], pending = a.filter(function(elem) { return elem.b === 'data'; }); console.log(pending); 

References:

• Array.prototype.filter() .