Lodash _.chain扁平找到匹配值數組

Question

我試圖從lodash庫的幫助下從我的多維數組中找到匹配的對象。我正在使用_.chain的組合以及更平坦的更深層次。

不知道我應該用什麼方法。任何人都可以請審查，並幫助我得到預期的結果？

JSFIDDLE Lin

var team = _.chain(data).flatten("divisionTeams").find({"id": 3222}).value(); 

Answer 1

你應該先使用map()返回divisionTeams，然後壓平，並找到。

var data = [{"divisionName":"5th Grade - Green","divisionTeams":[{"id":3222,"name":"Columbia Ravens 5th","coach":"John Miller"},{"id":4299,"name":"D1 Spartans","coach":"Jacob Silverman"},{"id":3220,"name":"HC Elite OMalley 5th","coach":"Eddie OMalley"},{"id":3277,"name":"MD 3D 5th","coach":"Marty Libinski"},{"id":3275,"name":"Severn Elite Gold","coach":"Darryl Adams"},{"id":3224,"name":"Team Dedication 5th","coach":"Don Carpenter"}]},{"divisionName":"5th Grade - White","divisionTeams":[{"id":3225,"name":"CBSA Hoyas 5th Grade","coach":"Terrance Taylor"},{"id":3276,"name":"HC Elite 4th Tookes","coach":"Anthony Tookes"},{"id":3221,"name":"HC Elite Knisley 5th","coach":"Jordan Knisley"},{"id":3226,"name":"Randelstown Runnin Rebels 5th","coach":"Eric Levi"},{"id":3223,"name":"Up n Coming Clippers 5th","coach":"Brian Jackson"}]}] 
 

 
var team = _.chain(data) 
 
.map(e => e.divisionTeams) 
 
.flatten() 
 
.find({ "id": 3222}) 
 
.value(); 
 

 
console.log(JSON.stringify(team));

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