Suppose we have an array like
var a = [
{ name: 'Tom', surname: 'TestAsIvanov' },
{ name: 'Kate', surname: 'Ivanova' },
{ name: 'John', surname: 'Alivanov' },
{ name: 'Ivan', surname: 'Ivanov' }
]
I need to sort this array by surname field based on a provided string, eg:
'iva'
the pattern array should be sorted as follows var newA = [
{ name: 'Ivan', surname: 'Ivanov' },
{ name: 'Kate', surname: 'Ivanova' },
{ name: 'John', surname: 'Alivanov' },
{ name: 'Tom', surname: 'TestAsIvanov' },
]
'a'
the pattern array should be sorted as follows var newA = [
{ name: 'John', surname: 'Alivanov' },
{ name: 'Ivan', surname: 'Ivanov' },
{ name: 'Kate', surname: 'Ivanova' },
{ name: 'Tom', surname: 'TestAsIvanov' },
]
So arrays should be ordered by string pattern provided. How is it possible to implement this?
I've made a simple sort script for that. I don't know if it is the best way because I had to use two sort()
methods, one to sort alphabetically( taken from here ) and another to simulate a LIKE 'string%'
(comparing to SQL) to get your condition:
var queryString = "iva";
a = a.sort(function(a, b) {
var s1 = a.surname.toUpperCase().indexOf(queryString.toUpperCase());
var s2 = b.surname.toUpperCase().indexOf(queryString.toUpperCase());
return (s1 > -1 && s1 > s2);
});
At least it worked with both examples you provided, but I'm not sure if it is all you need.
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