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- var a = {a:0,b:'',c:null,d:undefined,e:NaN,f:false,g:[],h:{}}
- var b = ['a','b','c','d','e','f','g','h'];
- function f(call){
- for(var i = 0; i< b.length; i++){
- if(call(b[i]) ){
- console.log(b[i]);
- }
- }
- }
- f((key)=>a[key]);//gh
- f((key)=>a[key]!=null);//все кроме cd
- f((key)=>(++a[key]));//abcfg
- var a = {a:0,b:'',c:null,d:undefined,e:NaN,f:false,g:[],h:{},i:1,j:'one',k:[1],l:{a:true},m:[1,2],n:1e-6,o:0.9}
- var b = ['a','b','c','d','e','f','g','h','i','j','k','l','m','n','o'];
- function f(call){
- for(var i = 0; i< b.length; i++){
- if(call(b[i]) ){
- console.log(b[i]);
- }
- }
- }
- f((key)=>++a[key]);//все кроме dehjlm
- f((key)=>a[key]+'');//все кроме bg
- f((key)=>a[key]);//все кроме abcdef
- f((key)=>a[key]!=null);//все кроме cd
- f((key)=>{
- console.log(`a[${key}]`+' => '+typeof(a[key])+`; ++a[${key}]`+' => '+(++a[key]));
- return false;
- });
- f((key)=>{
- console.log(`a[${key}]+''`+' => '+a[key]);
- return false;
- });
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