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大約有 1,000 項(xiàng)符合查詢結(jié)果 ,庫(kù)內(nèi)數(shù)據(jù)總量為 78,250 項(xiàng)。(搜索耗時(shí):0.0031秒)

261.JavaScript 隊(duì)列

```javascript function queue(arr, item) { // Your code here item =arr.push(item); ? item=arr.shift(); return item;// Change this line } // Test Setup var testArr = [1,2,3,4,5]; // Display Code console.log("Before: " + JSON.stringify(testArr)); console.log(queue(testArr, 6)); // Modify this line to ...

http://www.o2fo.com/chun5060/chun5060-etyf247c.html

262.Javascript 字符串操作綜合訓(xùn)練

```javascript function wordBlanks(myNoun, myAdjective, myVerb, myAdverb) { var result = ""; // Your code below this line result=myNoun+","+myAdjective+","+myVerb+","+ myAdverb; // Your code above this line return result; } // Change the words here to test your function wordBlanks("dog", "big", "ran"...

http://www.o2fo.com/chun5060/chun5060-kzpt247j.html

263.JavaScript 條件判斷算法綜合實(shí)戰(zhàn)

```javascript var count = 0; function cc(card) { // Only change code below this line ? switch(card){ ????? case 2: ????? case 3: ????? case 4: ????? case 5: ????? case 6: ????? count++; ????? break; ????? case 10: ????? case 'J': ????? case 'Q': ?...

http://www.o2fo.com/chun5060/chun5060-e9hy247k.html

264.JavaScript 在函數(shù)中使用return跳出函數(shù)

```javascript // Setup function abTest(a, b) { // Only change code below this line if(a<0){ ? return undefined; } else if(b<0){ ? return undefined; } // Only change code above this line return Math.round(Math.pow(Math.sqrt(a) + Math.sqrt(b), 2)); } // Change values below to test your code ab...

http://www.o2fo.com/chun5060/chun5060-enh2247l.html

265.JavaScript 檢查對(duì)象屬性

```javascript // Setup var myObj = { gift: "pony", pet: "kitten", bed: "sleigh" }; function checkObj(checkProp) { // Your Code Here ? if(myObj.hasOwnProperty(checkProp)){ ??? return myObj[checkProp]; ? }else ??? return "Not Found"; } // Test your code by modifying these values checkObj("gif...

http://www.o2fo.com/chun5060/chun5060-2j9u247m.html

266.JavaScript 使用對(duì)象進(jìn)行查找值

```javascript // Setup function phoneticLookup(val) { var result = ""; // Only change code below this line var lookup = { "alpha": "Adams", "bravo":? "Boston", "charlie": "Chicago", "delta": "Denver", "echo": "Easy", "foxtrot": "Frank" }; ? result=lookup[val]; // Only change code above this line r...

http://www.o2fo.com/chun5060/chun5060-bvi7247n.html

267.JavaScript JSON集合操作

```javascript // Setup var collection = { 2548: { album: "Slippery When Wet", artist: "Bon Jovi", tracks: [ "Let It Rock", "You Give Love a Bad Name" ] }, 2468: { album: "1999", artist: "Prince", tracks: [ "1999", "Little Red Corvette" ] }, 1245: { artist: "Robert Palmer", tracks: [ ] }, 5439:...

http://www.o2fo.com/chun5060/chun5060-4kwd247o.html

268.JavaScript 循環(huán)語(yǔ)句綜合實(shí)戰(zhàn)

```javascript function multiplyAll(arr) { var product = 1; // Only change code below this line for (var i=0; i < arr.length; i++) { for (var j=0; j < arr[i].length; j++) { console.log(arr[i][j]); ? product *= arr[i][j]; } } // Only change code above this line return product; } // Modify value...

http://www.o2fo.com/chun5060/chun5060-zqu9247q.html

269.JavaScript 注釋語(yǔ)句操作

```javascript //忽略掉這里 /*忽略掉這里*/ ```

http://www.o2fo.com/chun5060/chun5060-nzm9248z.html

270.聲明JavaScript變量

```javascript // 舉例 var ourName; // Define myName below this line var myName; ```

http://www.o2fo.com/chun5060/chun5060-ls1t2490.html

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261.JavaScript 隊(duì)列

```javascript function queue(arr, item) { // Your code here item =arr.push(item); ? item=arr.shift(); return item;// Change this line } // Test Setup var testArr = [1,2,3,4,5]; // Display Code console.log("Before: " + JSON.stringify(testArr)); console.log(queue(testArr, 6)); // Modify this line to ...

http://www.o2fo.com/chun5060/chun5060-etyf247c.html

262.Javascript 字符串操作綜合訓(xùn)練

```javascript function wordBlanks(myNoun, myAdjective, myVerb, myAdverb) { var result = ""; // Your code below this line result=myNoun+","+myAdjective+","+myVerb+","+ myAdverb; // Your code above this line return result; } // Change the words here to test your function wordBlanks("dog", "big", "ran"...

http://www.o2fo.com/chun5060/chun5060-kzpt247j.html

263.JavaScript 條件判斷算法綜合實(shí)戰(zhàn)

```javascript var count = 0; function cc(card) { // Only change code below this line ? switch(card){ ????? case 2: ????? case 3: ????? case 4: ????? case 5: ????? case 6: ????? count++; ????? break; ????? case 10: ????? case 'J': ????? case 'Q': ?...

http://www.o2fo.com/chun5060/chun5060-e9hy247k.html

264.JavaScript 在函數(shù)中使用return跳出函數(shù)

```javascript // Setup function abTest(a, b) { // Only change code below this line if(a<0){ ? return undefined; } else if(b<0){ ? return undefined; } // Only change code above this line return Math.round(Math.pow(Math.sqrt(a) + Math.sqrt(b), 2)); } // Change values below to test your code ab...

http://www.o2fo.com/chun5060/chun5060-enh2247l.html

265.JavaScript 檢查對(duì)象屬性

```javascript // Setup var myObj = { gift: "pony", pet: "kitten", bed: "sleigh" }; function checkObj(checkProp) { // Your Code Here ? if(myObj.hasOwnProperty(checkProp)){ ??? return myObj[checkProp]; ? }else ??? return "Not Found"; } // Test your code by modifying these values checkObj("gif...

http://www.o2fo.com/chun5060/chun5060-2j9u247m.html

266.JavaScript 使用對(duì)象進(jìn)行查找值

```javascript // Setup function phoneticLookup(val) { var result = ""; // Only change code below this line var lookup = { "alpha": "Adams", "bravo":? "Boston", "charlie": "Chicago", "delta": "Denver", "echo": "Easy", "foxtrot": "Frank" }; ? result=lookup[val]; // Only change code above this line r...

http://www.o2fo.com/chun5060/chun5060-bvi7247n.html

267.JavaScript JSON集合操作

```javascript // Setup var collection = { 2548: { album: "Slippery When Wet", artist: "Bon Jovi", tracks: [ "Let It Rock", "You Give Love a Bad Name" ] }, 2468: { album: "1999", artist: "Prince", tracks: [ "1999", "Little Red Corvette" ] }, 1245: { artist: "Robert Palmer", tracks: [ ] }, 5439:...

http://www.o2fo.com/chun5060/chun5060-4kwd247o.html

268.JavaScript 循環(huán)語(yǔ)句綜合實(shí)戰(zhàn)

```javascript function multiplyAll(arr) { var product = 1; // Only change code below this line for (var i=0; i < arr.length; i++) { for (var j=0; j < arr[i].length; j++) { console.log(arr[i][j]); ? product *= arr[i][j]; } } // Only change code above this line return product; } // Modify value...

http://www.o2fo.com/chun5060/chun5060-zqu9247q.html

269.JavaScript 注釋語(yǔ)句操作

```javascript //忽略掉這里 /*忽略掉這里*/ ```

http://www.o2fo.com/chun5060/chun5060-nzm9248z.html

270.聲明JavaScript變量

```javascript // 舉例 var ourName; // Define myName below this line var myName; ```

http://www.o2fo.com/chun5060/chun5060-ls1t2490.html

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