一維數組轉多維數組

var arr=[1,2,3,4,5,6,7,8,9,10]; function splitArray(arr,size){var result = [];var tempArray;for(var i = 0; i < arr.length; i++){ if(i%size == 0 ){if(tempArray){result.push(tempArray);}tempArray = []; }tempArray[tempArray.length]=arr[i];if(i+1 == arr.length){result.push(tempArray);}}return result;}console.log(splitArray(arr,3)); //[[1,2,3],[4,5,6],[7,8,9],[10]] 一維數組轉多維數組并去重 var arr=[1,2,3,4,5,6,7,8,9,10,11,12,1,2,3,7,8,9]; function splitArray(arr,size){var result = [];var tempArray;for(var i = 0; i < arr.length; i++){ if(i%size == 0 ){if(tempArray){result.push(tempArray);}tempArray = []; }tempArray[tempArray.length]=arr[i];if(i+1 == arr.length){result.push(tempArray);}}return result;}Array.prototype.unique = function(){var json = {},result=[]; for(var i = 0; i < this.length; i++){if (!json[this[i]]){json[this[i]] = 1; result.push(this[i]); }}return result;}console.log(splitArray(arr,3)); //[[1,2,3],[4,5,6],[7,8,9],[10,11,12],[1,2,3],[7,8,9]]console.log(splitArray(arr,3).unique()); //[[1,2,3],[4,5,6],[7,8,9],[10,11,12]] 一維數組轉對象數組（三維） 　　var arr=[1,2,3,4,5,6,7,8,9,10,11,12,1,2,3,7,8,9]; function splitArray(arr){var json = {};var arr1 = [];for(var i=0;i<arr.length;i++){if( i%3==0 ){json.x = arr[i];}else if( i%3==1 ){json.y = arr[i];}else if( i%3==2 ){json.z = arr[i];arr1.push(json);json={};}}return arr1;}console.log(splitArray(arr)); //[{x:1,y:2,z:3},{x:4,y:5,z:6},{x:7,y:8,z:9},{x:10,y:11,z:12},{x:1,y:2,z:3},{x:7,y:8,z:9}] 一維數組轉對象數組（三維）并去重 var arr=[1,2,3,4,5,6,7,8,9,10,11,12,1,2,3,7,8,9]; function splitArray(arr){var json = {};var arr1 = [];for(var i=0;i<arr.length;i++){if( i%3==0 ){json.x = arr[i];}else if( i%3==1 ){json.y = arr[i];}else if( i%3==2 ){json.z = arr[i];arr1.push(json);json={};}}return arr1;}Array.prototype.unique = function(){var json = {},arr1=[];for(var i = 0; i < this.length; i++) {if (!json[JSON.stringify(this[i])]) {json[JSON.stringify(this[i])] = 1; arr1.push(this[i]); }}return arr1;}console.log(splitArray(arr)); //[{x:1,y:2,z:3},{x:4,y:5,z:6},{x:7,y:8,z:9},{x:10,y:11,z:12},{x:1,y:2,z:3},{x:7,y:8,z:9}]console.log(splitArray(arr).unique()); //[{x:1,y:2,z:3},{x:4,y:5,z:6},{x:7,y:8,z:9},{x:10,y:11,z:12}]

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轉載于:https://www.cnblogs.com/CQ-engineer/p/6228560.html

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