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- var data = [];
- var i=0;
- for (i=0;i<50000;i++) {
- data.push([Math.random(),Math.random()])
- }
- var swapedData = [];
- console.log(+new Date()) //1332356389339
- for (i=0;i<data.length;i++){
- swapedData[i] = [data[i][1], data[i][0],]
- }
- console.log(+new Date()) //1332356389548
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