splice 方法可以移除从 start 位置开始的指定个数的元素并插入新元素,从而修改 arrayObj。返回值是一个由所移除的元素组成的新 Array 对象。 要求 版本5.5 Js代码 Array.prototype.clear=function(){ this.length=0; } Array.prototype.insertAt=function(index,obj){ this.splice(index,0,obj); } Array.prototy...
functioninit(){//书写轮图片显示的定时操作setInterval("changeImg()",3000);//1.设置显示广告图片的定时操作time=setInterval("showAd()",3000);}//书写函数vari=0functionchangeImg(){i++;//获取图片位置并设置src属性值document.getElementById("img1").src="../img/"+i+".jpg";if(i==3){i=0...
1);//remove the first itemalert(colors);//green,bluealert(removed);//red - one item arrayremoved= colors.splice(1, 0, "yellow", "orange");//insert two items at position 1alert(colors);//green,yellow,orange,bluealert(removed);//empty arrayremoved= colors.splice(1, 1, "red", "pur...
For each element in the set, get the first element that matches the selector by testing the element itself and traversing up through its ancestors in the DOM tree.toArray():String[]Serializes the sortable's item data-id's (dataIdAttr option) into an array of string....
next; } return index; } //清除所有元素 function clear(){ head = null; size = 0; } //属性转字符串 function getObjString(obj){ let str = ""; if (obj instanceof Array){ str += "["; for (let i = 0; i < obj.length; i++){ str += getObjString(obj[i]); } str = ...
reserved (default: [])— Pass an array of identifiers that should be excluded from mangling. Example: ["foo", "bar"]. toplevel (default: false)— Pass true to mangle names declared in the top level scope. Examples: // test.js var globalVar; function funcName(firstLongName, anotherLong...
.find(fn)- return a document with only the first phrase that matches .some(fn)- return true or false if there is one matching phrase .random(fn)- sample a subset of the results Insert .replace(match, replace)- search and replace match with new content ...
array.flat(n)是es10嵌入层叠的api,n表示尺寸,n变化infinity时维度为无限大 2.开始篇 function flatten ( arr ) { while (arr.some( item => array .isarray(item))) { arr = [].concat(...arr); } return arr; } flatten([ 1 ,[ 2 , 3 ]]...
git config --global user.name userName git config --global user.email userEmail 分支15 标签2 Louis ChatriotAdded no longer maintained message2436f614年前 851 次提交 benchmarks Chmod 9年前 browser-version Updated browser tests 9年前 lib ...
JsRender template rendering detects whether the data parameter is an array or not. If it’s an array, the return value is the concatenation of the strings that would result from passing each of the individual array items to the render method. So the template will be rendered ...