js sorting: algorithm principle and code implementation of js bubble sorting

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Bubble sorting can be said to be the most classic sorting algorithm. It is a sorting algorithm based on comparison. Its advantages are simple implementation and better performance when the number of sorting is small.

Algorithm Principle

Adjacent data are compared in pairs, with the decimal placed in front and the large number placed in the back. If the front data is larger than the back data, the two numbers are exchanged. s position. You can also put large numbers in the front and decimals in the back. If the front data is smaller than the back data, swap the two positions. To implement the above rules, a two-level for loop is required.

Code implementation

• Bubble implementation array sorting from small to large

var arr=[2,7,1,8,6,4,3,5,9];
function mintomax(par){
  var length=par.length;
  for(var i=0; i<length-1>par[j+1]){
        var temp=par[j+1];
        par[j+1]=par[j];
        par[j]=temp;
      }
    }
  }
  return par;
}
console.log(mintomax(arr));</length-1>

• Bubbles to implement array sorting from large to small

var arr=[2,7,1,8,6,4,3,5,9];
function maxtomin(par){
      var length=par.length;
      for(var i=0; i<length-1><ul class=" list-paddingleft-2"><li><p>Rewrite the above code using es6 structure assignment </p></li></ul>
<pre class="brush:php;toolbar:false">var arr=[2,7,1,8,6,4,3,5,9];
function mintomax(par){
  var length=par.length;
  for(var i=0; i<length-1>par[j+1]){
        [par[j],par[j+1]]=[par[j+1],par[j]]
      }
    }
  }
  return par;
}
console.log(mintomax(arr));
function maxtomin(par){
  var length=par.length;
  for(var i=0; i<length-1 console.log><ul class=" list-paddingleft-2"><li><p>Sort in parent-child tiling order</p></li></ul>
<pre class="brush:php;toolbar:false">var data = [{
  ZDXM_STDCODE: '100101',
  ZDXM_STDNAME: '',
  FINA_YYSR: '',
  FINA_PGZHSY: '',
  FINA_SJZHSY: '',
  FINA_PGZHSYL: '',
  FINA_SJZHSYL: '',
  FINA_ZHSYLCE: '',
  FINA_SRJJL: '',
  FINA_JSSKL: '',
  FINA_HTE: '',
  GLZDXM: '1001',
},
{
  ZDXM_STDCODE: '1001',
  ZDXM_STDNAME: '',
  FINA_YYSR: '',
  FINA_PGZHSY: '',
  FINA_SJZHSY: '',
  FINA_PGZHSYL: '',
  FINA_SJZHSYL: '',
  FINA_ZHSYLCE: '',
  FINA_SRJJL: '',
  FINA_JSSKL: '',
  FINA_HTE: '',
  GLZDXM: '',
},
{
  ZDXM_STDCODE: '100102',
  ZDXM_STDNAME: '',
  FINA_YYSR: '',
  FINA_PGZHSY: '',
  FINA_SJZHSY: '',
  FINA_PGZHSYL: '',
  FINA_SJZHSYL: '',
  FINA_ZHSYLCE: '',
  FINA_SRJJL: '',
  FINA_JSSKL: '',
  FINA_HTE: '',
  GLZDXM: '1001',
},
{
  ZDXM_STDCODE: '100201',
  ZDXM_STDNAME: '',
  FINA_YYSR: '',
  FINA_PGZHSY: '',
  FINA_SJZHSY: '',
  FINA_PGZHSYL: '',
  FINA_SJZHSYL: '',
  FINA_ZHSYLCE: '',
  FINA_SRJJL: '',
  FINA_JSSKL: '',
  FINA_HTE: '',
  GLZDXM: '1002',
},
{
  ZDXM_STDCODE: '1002',
  ZDXM_STDNAME: '',
  FINA_YYSR: '',
  FINA_PGZHSY: '',
  FINA_SJZHSY: '',
  FINA_PGZHSYL: '',
  FINA_SJZHSYL: '',
  FINA_ZHSYLCE: '',
  FINA_SRJJL: '',
  FINA_JSSKL: '',
  FINA_HTE: '',
  GLZDXM: '',
},
{
  ZDXM_STDCODE: '100202',
  ZDXM_STDNAME: '',
  FINA_YYSR: '',
  FINA_PGZHSY: '',
  FINA_SJZHSY: '',
  FINA_PGZHSYL: '',
  FINA_SJZHSYL: '',
  FINA_ZHSYLCE: '',
  FINA_SRJJL: '',
  FINA_JSSKL: '',
  FINA_HTE: '',
  GLZDXM: '1002',
},
]
function datatotree(par) {
  var length = par.length;
  for (var i = 0; i  str2) {
        var temp = par[j + 1];
        par[j + 1] = par[j]
        par[j] = temp;
      }
    }
  }
  return par;
}
var data = datatotree(data)
console.log(data);

• Rewrite according to es6 structure assignment The above code

var data = [{
  ZDXM_STDCODE: '100101',
  ZDXM_STDNAME: '',
  FINA_YYSR: '',
  FINA_PGZHSY: '',
  FINA_SJZHSY: '',
  FINA_PGZHSYL: '',
  FINA_SJZHSYL: '',
  FINA_ZHSYLCE: '',
  FINA_SRJJL: '',
  FINA_JSSKL: '',
  FINA_HTE: '',
  GLZDXM: '1001',
},
{
  ZDXM_STDCODE: '1001',
  ZDXM_STDNAME: '',
  FINA_YYSR: '',
  FINA_PGZHSY: '',
  FINA_SJZHSY: '',
  FINA_PGZHSYL: '',
  FINA_SJZHSYL: '',
  FINA_ZHSYLCE: '',
  FINA_SRJJL: '',
  FINA_JSSKL: '',
  FINA_HTE: '',
  GLZDXM: '',
},
{
  ZDXM_STDCODE: '100102',
  ZDXM_STDNAME: '',
  FINA_YYSR: '',
  FINA_PGZHSY: '',
  FINA_SJZHSY: '',
  FINA_PGZHSYL: '',
  FINA_SJZHSYL: '',
  FINA_ZHSYLCE: '',
  FINA_SRJJL: '',
  FINA_JSSKL: '',
  FINA_HTE: '',
  GLZDXM: '1001',
},
{
  ZDXM_STDCODE: '100201',
  ZDXM_STDNAME: '',
  FINA_YYSR: '',
  FINA_PGZHSY: '',
  FINA_SJZHSY: '',
  FINA_PGZHSYL: '',
  FINA_SJZHSYL: '',
  FINA_ZHSYLCE: '',
  FINA_SRJJL: '',
  FINA_JSSKL: '',
  FINA_HTE: '',
  GLZDXM: '1002',
},
{
  ZDXM_STDCODE: '1002',
  ZDXM_STDNAME: '',
  FINA_YYSR: '',
  FINA_PGZHSY: '',
  FINA_SJZHSY: '',
  FINA_PGZHSYL: '',
  FINA_SJZHSYL: '',
  FINA_ZHSYLCE: '',
  FINA_SRJJL: '',
  FINA_JSSKL: '',
  FINA_HTE: '',
  GLZDXM: '',
},
{
  ZDXM_STDCODE: '100202',
  ZDXM_STDNAME: '',
  FINA_YYSR: '',
  FINA_PGZHSY: '',
  FINA_SJZHSY: '',
  FINA_PGZHSYL: '',
  FINA_SJZHSYL: '',
  FINA_ZHSYLCE: '',
  FINA_SRJJL: '',
  FINA_JSSKL: '',
  FINA_HTE: '',
  GLZDXM: '1002',
},
]
function datatotree(par) {
  var length = par.length;
  for (var i = 0; i  str2) {
        [par[j],par[j+1]]=[par[j+1],par[j]];
      }
    }
  }
  return par;
}
var data = datatotree(data)
console.log(data);

• The result after sorting the above code

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