I would like to loop through Immutable List
, I used List.map
to do it, it can be worked, but not good. is there are a better way? Because I just check each element in array, if the element match my rule, I do something, just like Array.forEach
, I don't want to return anything like Array.map
.
for example, it is my work now:
let currentTheme = '';
let selectLayout = 'Layout1';
let layouts = List([{
name: 'Layout1',
currentTheme: 'theme1'
},{
name: 'Layout2',
currentTheme: 'theme2'
}])
layouts.map((layout) => {
if(layout.get('name') === selectLayout){
currentTheme = layout.get('currentTheme');
}
});
The method List.forEach
exists for Immutable.js lists.
However, a more functional approach would be using the method List.find
as follows:
let selectLayoutName = 'Layout1';
let layouts = List([Map({
name: 'Layout1',
currentTheme: 'theme1'
}),Map({
name: 'Layout2',
currentTheme: 'theme2'
})])
selectLayout = layouts.find(layout => layout.get('name') === selectLayoutName);
currentTheme = selectLayout.get('currentTheme')
Then your code doesn't have side-effects.
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