Sometimes you need to convert a string to its normalized version that doesn't contain any special letters from languages different from English. French, German, Spanish, Hungarian languages have some special characters (letters with accents) likeä â ë üí ő ń. To remove all accents ...
// Copy toindex-7(equivalent to2), all elements from theindex-6(equivalent to3) toindex5notincluded ("d"and"e")letters = ["a","b","c","d","e","f","g","h"];letters.copyWithin(-7, -6,5);console.log(letters);//Output ...
"ABBABCCABAA"; const removeLetters = (str = '') => { const arr = str.split('') let count = 0 for (let i = 0; i < arr.length; i++) { if (arr[i] === arr[i + 1]) { count += 1 arr.splice(i, 1) i -= 1 } } return count } console.log(removeLetters(str));...
复制代码3、原生JavaScript清除空格1 String.prototype.trim =function() {2varreExtraSpace = /^\s*(.*?)\s+$/;3returnthis.replace(reExtraSpace, "$1")4}4、原生JavaScript替换全部1 String.prototype.replaceAll =function(s1, s2) {2returnthis.replace(newRegExp(s1, "gm"), s2)3}5、原生JavaScri...
this.totalLetters = 0; // How many letters in all } // This function updates the histogram with the letters of text. add(text) { // Remove whitespace from the text, and convert to upper case text = text.replace(/\s/g, "").toUpperCase(); ...
{"main title":"JavaScript",// These property names include spaces,"sub-title":"The Definitive Guide",// and hyphens, so use string literals.for:"all audiences",// for is reserved, but no quotes.author: {// The value of this property isfirstname:"David",// itself an object.surname:...
JavaScript RegExp 类表示正则表达式,String 和 RegExp 都定义了使用正则表达式执行强大的模式匹配和搜索替换功能的方法。然而,为了有效地使用 RegExp API,您还必须学习如何使用正则表达式语法描述文本模式,这本质上是一种自己的迷你编程语言。幸运的是,JavaScript 正则表达式语法与许多其他编程语言使用的语法非常相似,因此...
(equivalent to 2), all elements from the index -6 (equivalent to 3) to index 5 not included ("d" and "e")letters=["a","b","c","d","e","f","g","h"];letters.copyWithin(-7,-6,5);console.log(letters);// Output : ["a", "d", "e", "d", "e", "f", "g", ...
letterCounts = new DefaultMap(0); // Map from letters to counts this.totalLetters = 0; // How many letters in all } // This function updates the histogram with the letters of text. add(text) { // Remove whitespace from the text, and convert to upper case text = text.replace(/...
findPosV(start: CodeMirror.Position, amount: number, unit: string): { line: number; ch: number; hitSide?: boolean; }; /** Returns the start and end of the 'word' (the stretch of letters, whitespace, or punctuation) at the given position. */ ...