如果你想要在每个元素之间添加一个换行符,你可以将换行符作为.join()方法的参数。 换行符在不同的操作系统中可能有所不同。在大多数Unix系统(包括Linux和Mac OS X)中,换行符是\n。在Windows中,换行符是\r\n。 以下是一个在JavaScript中使用.join()方法添加换行符的例子: 代码语言:javascript 复制 var array ...
usesTextCleaner+replaceNewLines(text: String) : String+splitAndJoinNewLines(text: String) : StringNewLineHandler+replace() : String+split() : Array+join(arr: Array) : String 处理流程序列图 接下来,我们通过序列图更直观地呈现处理流程。在这个序列图中,我们展示了如何使用replace()和split()/join()方...
// bad function concatenateAll() { const args = Array.prototype.slice.call(arguments); return args.join(''); } // good function concatenateAll(...args) { return args.join(''); }7.7 Use default parameter syntax rather than mutating function arguments. // really bad function handleThings(...
ArrayPattern: an array pattern, for example, the left-hand side of [x, y] = arr ObjectPattern: an object pattern, for example, the left-hand side of {x, y: z} = o Here is an example of a query to find declaration statements that declare the same variable more than once, excludin...
Returns array of matched linebreaks eol.split(text) Splittextby newline Returns array of lines Joining Coercingnormalizersto string yields the appropriate character...useful glue for joining String(eol.lf)// "\n"eol.split(text).join(eol.auto)// === eol.auto(text)eol.split(text).filter(lin...
expr) throw new Error(msg); } suite('Array'); test('#length', function() { var arr = [1, 2, 3]; ok(arr.length == 3); }); test('#indexOf()', function() { var arr = [1, 2, 3]; ok(arr.indexOf(1) == 0); ok(arr.indexOf(2) == 1); ok(arr.indexOf(3) ==...
eslint: no-array-constructor // bad const items = new Array(); // good const items = []; 4.2 使用Array#push 取代直接赋值来给数组添加项。 const someStack = []; // bad someStack[someStack.length] = 'abracadabra'; // good someStack.push('abracadabra'); ...
css-in-javascript Add linting for Markdown prose 8年前 linters Add linting for Markdown prose 8年前 packages [eslint config] [*] [docs] Specify yarn-specific install instructions 8年前 react Updated "how to define propTypes..." 8年前 .editorconfig Add editorconfig 9年...
eslint:no-array-constructor var nums = new Array(1, 2, 3) // ✗ avoid var nums = [1, 2, 3] 避免使用arguments.callee和arguments.caller。 eslint:no-caller function foo (n) { if (n <= 0) return arguments.callee(n - 1) // ✗ avoid } function foo (n) { if (n <= 0)...
primes[0] // => 2: the first element (index 0) of the array. primes.length // => 4: how many elements in the array. primes[primes.length-1] // => 7: the last element of the array. primes[4] = 9; // Add a new element by assignment. primes[4] = 11; // Or alter an...