给定一个这样的字符串:
"The dog has a long tail, and it is RED!"
什么样的jQuery或JavaScript魔法可以用来保持空间只有一个最大空间?
目标:
"The dog has a long tail, and it is RED!"
给定一个这样的字符串:
"The dog has a long tail, and it is RED!"
什么样的jQuery或JavaScript魔法可以用来保持空间只有一个最大空间?
目标:
"The dog has a long tail, and it is RED!"
当前回答
尝试用一个空格替换多个空格。
<script type="text/javascript">
var myStr = "The dog has a long tail, and it is RED!";
alert(myStr); // Output 'The dog has a long tail, and it is RED!'
var newStr = myStr.replace(/ +/g, ' ');
alert(newStr); // Output 'The dog has a long tail, and it is RED!'
</script>
阅读更多@用单个空格替换多个空格
其他回答
我有一个方法,我叫它Derp方法因为没有更好的名字。
while (str.indexOf(" ") !== -1) {
str = str.replace(/ /g, " ");
}
在JSPerf中运行它会得到一些令人惊讶的结果,它击败了一些更复杂的方法EDIT原始JSPerf链接http://jsperf.com/removing-multiple-spaces/3当时似乎已经死了
我知道我们必须使用正则表达式,但在一次采访中,我被要求不要使用正则表达式。
@slightlytyler帮助我提出了下面的方法。
const testStr = "I LOVE STACKOVERFLOW LOL"; const removeSpaces = str => { Const chars = str.split("); const nextChars = char .reduce( (acc, c) => { If (c === ' ') { const lastChar = acc[acc.]长度- 1]; if (lastChar === ' ') { 返回acc; } } 返回[…acc, c]; }, [], ); const nextStr = nextchar .join("); 返回nextStr }; console.log (removeSpaces (testStr));
var string = "The dog has a long tail, and it is RED!";
var replaced = string.replace(/ +/g, " ");
或者如果你也想替换制表符:
var replaced = string.replace(/\s+/g, " ");
还有一种可能:
str.replace( /\s+/g, ' ' )
使用nodepad++函数,下面的regex对我来说很好,
发现:{1}\ \ s + K 替换:留空