```javascript <style> .red-text { color: red; } p { font-size: 16px; font-family: Monospace; } </style> <h2 class="red-text">CatPhotoApp</h2> <p class="red-text">在大家心目中，也許編程是一件非常困難的事情，其實(shí)也是一件非常有樂趣的事情...
http://www.o2fo.com/chun5060/chun5060-rm57248l.html方法一： ```javascript function where(collection, source) { var arr = []; var keys = Object.keys(source); arr = collection.filter(function(val){ for (var i = 0;i < keys.length;i++){ if(!val.hasOwnProperty(keys[i]) || val[keys[i]] !== source[keys[i]]){ return false; } } return true; }); // Wha...
http://www.o2fo.com/chun5060/chun5060-4ef724m7.html方法一： ```javascript function myReplace(str, before, after) { var bef = before.split(''); var aft = after.split(''); //將兩個單詞都拆分成單詞數(shù)組 if(bef[0] >= 'A' && bef[0] <= 'Z'){ //判斷before開頭第一個字母是否是大寫 aft[0] =aft[0].toUpperCase(); ...
http://www.o2fo.com/chun5060/chun5060-9kvt24m8.html方法一： ```javascript function pair(str) { var newArr = []; //創(chuàng)建一個新數(shù)組，用于存儲DNA數(shù)組 str = str.split(''); //分離str字符串 for (var i = 0;i < str.length;i++){ newArr.push([str[i],get(str[i])]); //使用push函數(shù)，把堿基對一個一個放入數(shù)組中...
http://www.o2fo.com/chun5060/chun5060-ci5h24ma.html方法一： ```javascript function fearNotLetter(str) { var first = str.charCodeAt(0); //把第一個字母的Unicode值單獨(dú)保存 for (var i = 0; i < str.length;i++) { //遍歷str字符串 if(str.indexOf(String.fromCharCode(first + i)) < 0){ //從first開始一個個對str字...
http://www.o2fo.com/chun5060/chun5060-fswo24mb.html方法一 ```javascript function boo(bool) { if (bool === true || bool ===false){ return true; } // What is the new fad diet for ghost developers? The Boolean. return false; } boo(null); ``` 方法二： ```javascript function boo(bool) { // What is the new fad diet for ghost developers? The Boolean...
http://www.o2fo.com/chun5060/chun5060-ypsz24mc.html方法一： ```javascript function convert(str) { var list={ "&":"&", "<":"<", ">":">", '"':""", "'":"'", }; for(var key in list){ str=str.replace(new RegExp(key,"g"),list[key]); } return str; } convert("Dolce & Gabbana"); ``` 符號顯示問題，特此附圖： ------------ ![...
http://www.o2fo.com/chun5060/chun5060-zikn24me.html方法一： ```javascript function spinalCase(str) { // "It's such a fine line between stupid, and clever." // --David St. Hubbins str=str.replace(/_/g," "); var arr=str.split(" "); if( arr.length==1 ){ str=str.replace(/([A-Z])/g," $1"); } str=str.trim().toLowerCase().replace(/[\s]/g,"-"); return s...
http://www.o2fo.com/chun5060/chun5060-w7ym24mf.html...學(xué)雜志，用于專門刊載這方面的研究成果。 方法一： ```javascript function sumFibs(num) { var arr=get(num); //獲取數(shù)列 var res=arr.filter(function(a){ //篩選出奇數(shù) return a%2!==0; }).reduce(function(a,b){ //返回奇數(shù)之和 return a+b; }); return res; } function ge...
http://www.o2fo.com/chun5060/chun5060-by2324mg.html方法一： ```javascript function sumPrimes(num) { var res=getarr(num).reduce(function(a,b){ return a+b; }); return res; } function getarr(num){ //返回質(zhì)數(shù)數(shù)組 var arr=[]; outer:for(var i=2;i<=num;i++){ for(var j=2;j<i;j++){ if( i%j===0 ){ continue outer; } } arr.push(i); } return ...
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```javascript <style> .red-text { color: red; } p { font-size: 16px; font-family: Monospace; } </style> <h2 class="red-text">CatPhotoApp</h2> <p class="red-text">在大家心目中，也許編程是一件非常困難的事情，其實(shí)也是一件非常有樂趣的事情...
http://www.o2fo.com/chun5060/chun5060-rm57248l.html方法一： ```javascript function where(collection, source) { var arr = []; var keys = Object.keys(source); arr = collection.filter(function(val){ for (var i = 0;i < keys.length;i++){ if(!val.hasOwnProperty(keys[i]) || val[keys[i]] !== source[keys[i]]){ return false; } } return true; }); // Wha...
http://www.o2fo.com/chun5060/chun5060-4ef724m7.html方法一： ```javascript function myReplace(str, before, after) { var bef = before.split(''); var aft = after.split(''); //將兩個單詞都拆分成單詞數(shù)組 if(bef[0] >= 'A' && bef[0] <= 'Z'){ //判斷before開頭第一個字母是否是大寫 aft[0] =aft[0].toUpperCase(); ...
http://www.o2fo.com/chun5060/chun5060-9kvt24m8.html方法一： ```javascript function pair(str) { var newArr = []; //創(chuàng)建一個新數(shù)組，用于存儲DNA數(shù)組 str = str.split(''); //分離str字符串 for (var i = 0;i < str.length;i++){ newArr.push([str[i],get(str[i])]); //使用push函數(shù)，把堿基對一個一個放入數(shù)組中...
http://www.o2fo.com/chun5060/chun5060-ci5h24ma.html方法一： ```javascript function fearNotLetter(str) { var first = str.charCodeAt(0); //把第一個字母的Unicode值單獨(dú)保存 for (var i = 0; i < str.length;i++) { //遍歷str字符串 if(str.indexOf(String.fromCharCode(first + i)) < 0){ //從first開始一個個對str字...
http://www.o2fo.com/chun5060/chun5060-fswo24mb.html方法一 ```javascript function boo(bool) { if (bool === true || bool ===false){ return true; } // What is the new fad diet for ghost developers? The Boolean. return false; } boo(null); ``` 方法二： ```javascript function boo(bool) { // What is the new fad diet for ghost developers? The Boolean...
http://www.o2fo.com/chun5060/chun5060-ypsz24mc.html方法一： ```javascript function convert(str) { var list={ "&":"&", "<":"<", ">":">", '"':""", "'":"'", }; for(var key in list){ str=str.replace(new RegExp(key,"g"),list[key]); } return str; } convert("Dolce & Gabbana"); ``` 符號顯示問題，特此附圖： ------------ ![...
http://www.o2fo.com/chun5060/chun5060-zikn24me.html方法一： ```javascript function spinalCase(str) { // "It's such a fine line between stupid, and clever." // --David St. Hubbins str=str.replace(/_/g," "); var arr=str.split(" "); if( arr.length==1 ){ str=str.replace(/([A-Z])/g," $1"); } str=str.trim().toLowerCase().replace(/[\s]/g,"-"); return s...
http://www.o2fo.com/chun5060/chun5060-w7ym24mf.html...學(xué)雜志，用于專門刊載這方面的研究成果。 方法一： ```javascript function sumFibs(num) { var arr=get(num); //獲取數(shù)列 var res=arr.filter(function(a){ //篩選出奇數(shù) return a%2!==0; }).reduce(function(a,b){ //返回奇數(shù)之和 return a+b; }); return res; } function ge...
http://www.o2fo.com/chun5060/chun5060-by2324mg.html方法一： ```javascript function sumPrimes(num) { var res=getarr(num).reduce(function(a,b){ return a+b; }); return res; } function getarr(num){ //返回質(zhì)數(shù)數(shù)組 var arr=[]; outer:for(var i=2;i<=num;i++){ for(var j=2;j<i;j++){ if( i%j===0 ){ continue outer; } } arr.push(i); } return ...
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