AI代码解释 _.flatten([1,[2],[3,[[4]]]);=>[1,2,3,4];复制代码 参考文献 实现扁平化(flatten)数组的方法还有很多种,可以参考一下文献 javascript-flattening-an-array-of-arrays-of-objects
varnew_array = arr.flatMap(functioncallback(currentValue[, index[, array]]) {// return element for new_array}[, thisArg]) flat https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/flat varnewArray = arr.flat([depth]);// depth defaults 1// The depth ...
// Flattens recursively until the array contains no nested arrays numbers.flat(Infinity) > [1, 2, 3, 4, 5, 6] 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 参考地址:https://developer.mozilla.org/zh-CN/docs/Web/JavaScript/Reference/Global_Objects/Array/flat...
return SmiFromUint32(arrayIndex); } // Fall back to the runtime. goto CallRuntime; } label CallRuntime { tail runtime::StringParseInt(input, radix); } } 看这段代码前,先科普下 V8 中的几个数据结构:(V8 所有数据结构的定义可以见 [→ src/objects/objects.h]) Smi:继承自 Object,immediate...
Array of shapes as json objects that represent closed chains Array of points (Flatten.Point) that represent vertices of the polygon Array of numeric pairs [x,y] that represent vertices of the polygon Instances of Circle or BoxPolygon provides various useful methods:area...
Array.prototype.concat.apply([], [1, [2,3], [4]]) 1. 而通过此方法也可以写一个深层次遍历的方法: function flattenDeep(arrs) {let result = Array.prototype.concat.apply([], arrs);while (result.some(item => item instanceof Array)) { ...
type === "prez")); /* flatten objects */ const rows = prez.map(row => ({ name: row.name.first + " " + row.name.last, birthday: row.bio.birthday })); /* generate worksheet and workbook */ const worksheet = XLSX.utils.json_to_sheet(rows); const workbook = XLSX.utils.book_...
fn[operator] = function() { // arguments can be nodes, arrays of nodes, Zepto objects and HTML strings var argType, nodes = $.map(arguments, function(arg) { argType = type(arg) return argType == "object" || argType == "array" || arg == null ? arg : zepto.fragment(arg) }...
First make sure you have installed the latest version ofnode.js(You may need to restart your computer after this step). From NPM for use as a command line app: npm install uglify-js -g From NPM for programmatic use: npm install uglify-js ...
1_.difference = restArgs(function(array, rest) {2rest = flatten(rest,true,true);3return_.filter(array,function(value){4return!_.contains(rest, value);5});6}); 作用是剔除第一数组中其他数组也有的元素,它是先调用flatten将其合并,再调用filter选出符合条件的,里面的条件是!_.cotains,也就是不...