Question

125

Find and remove first matching element in an array of Javascript objects

rated 0 times [ 126] [ 1] / answers: 1 / hits: 16574 / 6 Years ago, thu, november 29, 2018, 12:00:00

Suppose I have an array:

    members = [

        {name: 'Anna', class: 'one'}, 

        {name: 'Bob', class: 'two'},  

        {name: 'Chuck', class: 'two'}];



    removed = members.myRemoveByClass('two');     //something like



    // removed is {name: 'Bob', class: 'two'} 

    // members is [{name: 'Anna', class: 'one'}, {name: 'Chuck', class: 'two'}]

I'm looking for something for myRemoveByClass. ES2015 is fine or using Lodash. The array will have been ordered already. None of the questions I've seen quite match what I'm looking for.

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daquanmilesw

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answered 6 Years ago elainaw · Accepted Answer

You could create your own Array class:

 class Members extends Array {

   removeByClass(className) {

     for(const [index, member] of this.entries())

        if(member.class === className) 

           return this.splice(index, 1)[0];

   }

}

Use it as

 const members = new Members([ {/*...*/}, {/*...*/} ]);

 members.removeByClass(...);

PS: class is a very bad name as it is a reserved keyword