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How to merge object arrays based on join of a key property in each
agershun edited this page Dec 28, 2014
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SOurce:StackOverflow.com
How to merge the following object arrays, by first joining on the id property?
var arr1 = [{
id: 1,
name: 'fred',
title: 'boss'
},{
id: 2,
name: 'jim',
title: 'nobody'
},{
id: 3,
name: 'bob',
title: 'dancer'
}];
var arr2 = [{
id: 1,
wage: '300',
rate: 'day'
},{
id: 2,
wage: '10',
rate: 'hour'
},{
id: 3,
wage: '500',
rate: 'week'
}];
The result would be
[{
id: 1,
name: 'fred',
title: 'boss',
wage: '300',
rate: 'day'
},{
id: 2,
name: 'jim',
title: 'nobody',
wage: '10',
rate: 'hour'
},{
id: 3,
name: 'bob',
title: 'dancer',
wage: '500',
rate: 'week'
}]
You can merge two arrays by id column with like in this example:
var res = alasql('SELECT * FROM ? arr1 JOIN ? arr2 USING id', [arr1,arr2]);
Try this example at jsFiddle
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