getCharCode:function(event) {if(typeofevent.charCode == 'number') {returnevent.charCode; }else{returnevent.keyCode; } } }; 用户单击提交按钮或图像按钮时,就会提交表单,使用input或者button都可以提交表单,只需将type设置为submit或者image即可,如下三种方式都可以; 第一种: <formid="form"name="form1"...
event = EventUtil.getEvent(event); // var target = EventUtil.getTarget(event); var charCode = EventUtil.getCharCode(event); if (!/\d/.test(String.fromCharCode(charCode)) && charCode > 9 && !event.ctrlKey) { EventUtil.preventDefault(event); } }) </script> 1. 2. 3. 4. 5. 6. 7...
Delta:function(event){if(event.wheelDelta){returnevent.wheelDelta;}else{return-event.detail*40}},getCharCode:function(event){if(typeof event.charCode=='number'){returnevent.charCode;}else{returnevent.keyCode;}}}; 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17...
functiontokenize(code){letREGEXES=[// ...];letstatements=code.split(' ');lettokens;REGEXES.forEach((REGEX)=>{statements.forEach((statement)=>{// ...})});returntokens;}functionlexer(tokens){letast;tokens.forEach((token)=>{// lex...});returnast;}functionparseBetterJSAlternative(code){l...
Remove dead codeDead code is just as bad as duplicate code. There's no reason to keep it in your codebase. If it's not being called, get rid of it! It will still be safe in your version history if you still need it.Bad:
这是我们都在使用的一种常用的简便技巧,在这里仍然值得再提一下。 注意:如果 test1 有值,将执行 if 之后的逻辑,这个操作符主要用于 null 或 undefinded 检查。 4. 用于多个条件判断的 && 操作符 如果只在变量为 true 时才调用函数,可以使用 && 操作符。
function hashIt(data) { // The hash var hash = 0; // Length of string var length = data.length; // Loop through every character in data for (var i = 0; i < length; i++) { // Get character code. var char = data.charCodeAt(i); // Make the hash hash = ((hash << 5)...
console.log(get_copyright()); `; // 将 JS 代码转换为二进制字符串 function convertToBinary(code) { let binary = ""; for (let i = 0; i < code.length; i++) { const charCode = code.charCodeAt(i); const charBinary = charCode.toString(2).padStart(8, "0"); ...
length; // Loop through every character in data for (var i = 0; i < length; i++) { // Get character code. var char = data.charCodeAt(i); // Make the hash hash = ((hash << 5) - hash) + char; // Convert to 32-bit integer hash = hash & hash; } }Good:...
async function recognizeCodeWithTesseract(base64) { const worker = await Tesseract.createWorker("eng"); const charCodes = []; for (let i = 0; i < 26; i++) { if (i <= 9) charCodes.push(i); charCodes.push(String.fromCharCode(97 + i), String.fromCharCode(65 + i)); //生成...