{"id":632,"date":"2020-10-14T16:32:30","date_gmt":"2020-10-14T08:32:30","guid":{"rendered":"https:\/\/www.cxybj.com\/?p=632"},"modified":"2020-10-14T16:48:11","modified_gmt":"2020-10-14T08:48:11","slug":"js-for%e5%92%8cforeach%e5%be%aa%e7%8e%af%e8%bf%90%e7%94%a8","status":"publish","type":"post","link":"https:\/\/www.cxybj.com\/?p=632","title":{"rendered":"JS for\u548cforEach\u5faa\u73af\u8fd0\u7528"},"content":{"rendered":"\n

for\u5faa\u73af<\/strong>
for (i = 0; i < loopTimes; i++) {
console.log(i);
}<\/p>\n\n\n\n

for..in\u5faa\u73af<\/strong>
for (property in obj) {
console.log(property, obj[property]);
}<\/p>\n\n\n\n

for..of\u5faa\u73af<\/strong>
for..of\u5faa\u73af\u4fee\u590d\u4e86for..in\u5b58\u5728\u7684\u95ee\u9898\uff0c\u5b83\u53ea\u904d\u5386\u5c5e\u4e8e\u5bf9\u8c61\u672c\u8eab\u7684\u5c5e\u6027\u503c\u3002
\u4e14\u8fd9\u4e2a\u5bf9\u8c61\u5fc5\u987b\u662fiterable\u53ef\u88ab\u8fed\u4ee3\u7684\u3002
\u5982Array, Map, Set\u3002
for (element of iterable) {
console.log(element);
}<\/p>\n\n\n\n

forEach: \u7c7b\u4f3cfor\u5faa\u73af\uff0c\u65e0\u8fd4\u56de\u503c<\/strong>
var arr = [1,2,3,4,5];
arr.forEach((item,index,array) => {
console.log(index + ‘–‘ + item);;\/\/ 0–1 1–2 2–3 \u2026 console.log(array); \/\/ [1, 2, 3, 4, 5]
})<\/p>\n","protected":false},"excerpt":{"rendered":"

for\u5faa\u73affor (i = 0; i < loopTi … Read More<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[7,157],"tags":[],"_links":{"self":[{"href":"https:\/\/www.cxybj.com\/index.php?rest_route=\/wp\/v2\/posts\/632"}],"collection":[{"href":"https:\/\/www.cxybj.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.cxybj.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.cxybj.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.cxybj.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=632"}],"version-history":[{"count":5,"href":"https:\/\/www.cxybj.com\/index.php?rest_route=\/wp\/v2\/posts\/632\/revisions"}],"predecessor-version":[{"id":637,"href":"https:\/\/www.cxybj.com\/index.php?rest_route=\/wp\/v2\/posts\/632\/revisions\/637"}],"wp:attachment":[{"href":"https:\/\/www.cxybj.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=632"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.cxybj.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=632"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.cxybj.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=632"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}