- Tech
- Regular expressions in JavaScript
new document </ title> <meta name = "generator" content = "editplus"> < Meta Name = "Author" content = "> <meta name =" keywords "content ="> <meta name = "description" content = "> </ head></p>
<p><Body> <script language = "javascript"> <! - function testdemo (re, s) {var s1; // declared variable. // Check if a string has a regular expression. If (RE.TEST (s)) {// Tests if there is. S1 = "Contains"; // S contains mode. Alert (S1);} else {s1 = "does not contain"; // S does not include mode. Alert (s1);} return ("'" "" " " " " "); // Returns the string. }</p>
<p>// -> </ script> <input type = "button" value = "TestDemo (/ jas /, 'Hello Jas, My Name is jas ...')" οnclick = "JavaScript: TestDemo (/ JAS /, 'Hello Jas, My Name IS jas ...') "/> </ body> </ html></p>
<p>Test method</p>
<p>Returns a boolean value that indicates whether there is a mode in the string of the lookup.</p>
<p>RGEXP.TEST (STR)</p>
<p>parameter</p>
<p>RGEXP</p>
<p>required. Contains regular expressions objects that contain regular expression modes or available flags.</p>
<p>Str</p>
<p>required. To test the string of the lookup.</p>
<p>Description</p>
<p>Test method checks if there is a pattern in the string, if you exist, returns true, otherwise you return false.</p>
<p>The properties of the global regexp object are not modified by the Test method.</p>
<p>Example</p>
<p>The following example exemplifies the usage of the Test method:</p>
<p>Function TestDemo (RE, S) {</p>
<p>Var S1; // Declare the variable.</p>
<p>// Check if a string has a regular expression.</p>
<p>if (RE.TEST (s)) // Tests if it exists.</p>
<p>S1 = "Contains"; // S contains mode.</p>
<p>Else</p>
<p>S1 = "does not contain"; // S does not include mode.</p>
<p>Return ("'" S "" " " Re.Source ""); // Returns the string. }</p></div><div class="text-center mt-3 text-grey">
转载请注明原文地址:https://www.9cbs.com/read-111809.html</div><div class="plugin d-flex justify-content-center mt-3"></div><hr><div class="row"><div class="col-lg-12 text-muted mt-2"><i class="icon-tags mr-2"></i><span class="badge border border-secondary mr-2"><h2 class="h6 mb-0 small"><a class="text-secondary" href="tag-2.html">9cbs</a></h2></span></div></div></div></div><div class="card card-postlist border-white shadow"><div class="card-body"><div class="card-title"><div class="d-flex justify-content-between"><div><b>New Post</b>(<span class="posts">0</span>)
</div><div></div></div></div><ul class="postlist list-unstyled">
</ul></div></div><div class="d-none threadlist"><input type="checkbox" name="modtid" value="111809" checked /></div></div></div></div></div><footer class="text-muted small bg-dark py-4 mt-3" id="footer"><div class="container"><div class="row"><div class="col">CopyRight © 2020 All Rights Reserved
</div><div class="col text-right">Processed:
<b>0.050</b>, SQL:
<b>9</b></div></div></div></footer><script src="./lang/en-us/lang.js?2.2.0"></script><script src="view/js/jquery.min.js?2.2.0"></script><script src="view/js/popper.min.js?2.2.0"></script><script src="view/js/bootstrap.min.js?2.2.0"></script><script src="view/js/xiuno.js?2.2.0"></script><script src="view/js/bootstrap-plugin.js?2.2.0"></script><script src="view/js/async.min.js?2.2.0"></script><script src="view/js/form.js?2.2.0"></script><script>
var debug = DEBUG = 0;
var url_rewrite_on = 1;
var url_path = './';
var forumarr = {"1":"Tech"};
var fid = 1;
var uid = 0;
var gid = 0;
xn.options.water_image_url = 'view/img/water-small.png';
</script><script src="view/js/wellcms.js?2.2.0"></script><a class="scroll-to-top rounded" href="javascript:void(0);"><i class="icon-angle-up"></i></a><a class="scroll-to-bottom rounded" href="javascript:void(0);" style="display: inline;"><i class="icon-angle-down"></i></a></body></html><script>
var forum_url = 'list-1.html';
var safe_token = 'ojoCtJ0z_2Fx31iFyZJuclexYD98HnKILzfzSBqNuN78HK4D614qU6tN9JWMaeFXZLdShvTf1AJVnVfkW7tBhqnw_3D_3D';
var body = $('body');
body.on('submit', '#form', function() {
var jthis = $(this);
var jsubmit = jthis.find('#submit');
jthis.reset();
jsubmit.button('loading');
var postdata = jthis.serializeObject();
$.xpost(jthis.attr('action'), postdata, function(code, message) {
if(code == 0) {
location.reload();
} else {
$.alert(message);
jsubmit.button('reset');
}
});
return false;
});
function resize_image() {
var jmessagelist = $('div.message');
var first_width = jmessagelist.width();
jmessagelist.each(function() {
var jdiv = $(this);
var maxwidth = jdiv.attr('isfirst') ? first_width : jdiv.width();
var jmessage_width = Math.min(jdiv.width(), maxwidth);
jdiv.find('img, embed, iframe, video').each(function() {
var jimg = $(this);
var img_width = this.org_width;
var img_height = this.org_height;
if(!img_width) {
var img_width = jimg.attr('width');
var img_height = jimg.attr('height');
this.org_width = img_width;
this.org_height = img_height;
}
if(img_width > jmessage_width) {
if(this.tagName == 'IMG') {
jimg.width(jmessage_width);
jimg.css('height', 'auto');
jimg.css('cursor', 'pointer');
jimg.on('click', function() {
});
} else {
jimg.width(jmessage_width);
var height = (img_height / img_width) * jimg.width();
jimg.height(height);
}
}
});
});
}
function resize_table() {
$('div.message').each(function() {
var jdiv = $(this);
jdiv.find('table').addClass('table').wrap('<div class="table-responsive"></div>');
});
}
$(function() {
resize_image();
resize_table();
$(window).on('resize', resize_image);
});
var jmessage = $('#message');
jmessage.on('focus', function() {if(jmessage.t) { clearTimeout(jmessage.t); jmessage.t = null; } jmessage.css('height', '6rem'); });
jmessage.on('blur', function() {jmessage.t = setTimeout(function() { jmessage.css('height', '2.5rem');}, 1000); });
$('#nav li[data-active="fid-1"]').addClass('active');
</script> 
