2017-09-15 562 views
0

我將如何對以下數組進行排序,以便它首先按升序年份跨度和每年跨度應用排序,它首先按類型「簡單」,然後「複雜」對它進行排序?我還需要數組中每個排序的開始索引和計數。所以在這種情況下。問題是數組可以是動態的,這意味着可以添加新的一年跨度。使用JQuery將對象數組按多個屬性排序

var array = [ 
    {"name":"one", "year":"2017-2018", "type":"simple"}, 
    {"name":"two", "year":"2018-2019", "type":"complex"}, 
    {"name":"three", "year":"2017-2018", "type":"complex"}, 
    {"name":"four", "year":"2018-2019", "type":"complex"}, 
    {"name":"five", "year":"2018-2019", "type":"simple"}, 
    {"name":"six", "year":"2017-2018", "type":"simple"}, 
]; 

這裏的輸出是:

var array = [ 
    {"name":"one", "year":"2017-2018", "type":"simple"}, 
    {"name":"six", "year":"2017-2018", "type":"simple"}, 
    {"name":"three", "year":"2017-2018", "type":"complex"}, 
    {"name":"five", "year":"2018-2019", "type":"simple"}, 
    {"name":"two", "year":"2018-2019", "type":"complex"}, 
    {"name":"four", "year":"2018-2019", "type":"complex"}, 
]; 

//These need to be generated dynamically 
startIndex2017simple = 0; 
count2017simple = 2; 
startIndex2017complex = 2; 
count2017complex = 1; 
startIndex2018simple = 3; 
count2018simple = 1; 
startIndex2018complex = 4; 
count2018complex = 2; 

我至今只設法通過簡單或複雜的,但不是年的跨度進行排序。

這裏是我當前的代碼(打字稿和反應):

props.items.forEach((item, index) => { 
    if(item.type=== "simple") 
     sorted.unshift(item); 
    else 
     sorted.push(item); 
}); 

this.simples = props.items.filter((item)=>{ 
    return item.type === "simple" 
}); 
this.complex= props.items.filter((item)=>{ 
    return item.type !== "complex" 
});  

我得到startIndex和利用simples和複雜的陣列計算性能。

+0

您能否請您顯示您當前的排序邏輯。你只需要修改它,以便在'type'匹配的情況下按'year'排序。 –

+0

我沒有添加它,因爲它太靜態,我覺得這是一個完全錯誤的方法。抱歉 – LeonidasFett

回答

1

@LeonidasFett,我有一個JavaScript邏輯,首先按年排序。在按類型排序之前,您可以將此即興發揮到您的React中。

var testArray = [ 
    {"name":"one", "year":"2017-2018", "type":"simple"}, 
    {"name":"two", "year":"2018-2019", "type":"complex"}, 
    {"name":"three", "year":"2017-2018", "type":"complex"}, 
    {"name":"four", "year":"2018-2019", "type":"complex"}, 
    {"name":"five", "year":"2018-2019", "type":"simple"}, 
    {"name":"six", "year":"2017-2018", "type":"simple"} 
]; 

testArray.sort(function(a, b) { 
    return a.year.substring(0, 4) - b.year.substring(0, 4); 
}); 

記錄的testArray到控制檯現在將是:

[ 
{name: "one", year: "2017-2018", type: "simple"}, 
{name: "three", year: "2017-2018", type: "complex"}, 
{name: "six", year: "2017-2018", type: "simple"}, 
{name: "two", year: "2018-2019", type: "complex"}, 
{name: "four", year: "2018-2019", type: "complex"}, 
{name: "five", year: "2018-2019", type: "simple"} 
] 

然後你按類型。

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