{"id":3382,"date":"2021-02-10T18:38:04","date_gmt":"2021-02-10T23:38:04","guid":{"rendered":"http:\/\/bluegalaxy.info\/codewalk\/?p=3382"},"modified":"2021-02-10T18:39:10","modified_gmt":"2021-02-10T23:39:10","slug":"javascript-how-to-use-es6-template-literals","status":"publish","type":"post","link":"https:\/\/bluegalaxy.info\/codewalk\/2021\/02\/10\/javascript-how-to-use-es6-template-literals\/","title":{"rendered":"Javascript: How to use ES6 Template Literals"},"content":{"rendered":"\n

When using ES6 with a linter I got this suggestion from sonarqube to replace my standard string concatenation with an apparently preferred Template Literal<\/code>.<\/p>\n\n\n\n

Here is the sonarqube message I got:<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

The string concatenation that triggered this suggestion was:<\/p>\n\n\n\n

('0000' + hexID.toString(16).toUpperCase()).slice(-4)<\/pre>\n\n\n\n
The suggested fix using a Template Literal looks like this:<\/p>\n\n\n\n
`0000${hexID.toString(16).toUpperCase()}`.slice(-4)<\/pre>\n\n\n\n
Basically, a template literal has this syntax: <\/u><\/p>\n\n\n\n
backtick, `<\/code>
some string, 0000<\/code>
dollar sign, $<\/code>
opening bracket, {<\/code>
string  “expression”, hexID.toString(16).toUpperCase()<\/code>
closing bracket, }<\/code>
and finally, closing backtick.`<\/code> <\/p>\n\n\n\n
<\/p>\n\n\n\n
<\/p>\n\n\n\n
Here is a codepen that demonstrates the differences:<\/p>\n\n\n
\nSee the Pen ES6 Template Literals by Chris Nielsen (@Chris_Nielsen) on CodePen.<\/p>\n\n\n\n\n
<\/p>\n\n\n\n
<\/p>\n\n\n\n
For more information about Template Literals see:
https:\/\/developer.mozilla.org\/en-US\/docs\/Web\/JavaScript\/Reference\/Template_literals<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"
When using ES6 with a linter I got this suggestion from sonarqube to replace my standard string concatenation with an apparently preferred Template Literal. Here is the sonarqube message I got: The string concatenation that triggered this suggestion was: The suggested fix using a Template Literal looks like this: Basically, a template literal has this … Continue reading Javascript: How to use ES6 Template Literals<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[44],"tags":[223,45,224],"class_list":["post-3382","post","type-post","status-publish","format-standard","hentry","category-javascript-language","tag-es6","tag-javascript","tag-template-literals"],"_links":{"self":[{"href":"https:\/\/bluegalaxy.info\/codewalk\/wp-json\/wp\/v2\/posts\/3382","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/bluegalaxy.info\/codewalk\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/bluegalaxy.info\/codewalk\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/bluegalaxy.info\/codewalk\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/bluegalaxy.info\/codewalk\/wp-json\/wp\/v2\/comments?post=3382"}],"version-history":[{"count":17,"href":"https:\/\/bluegalaxy.info\/codewalk\/wp-json\/wp\/v2\/posts\/3382\/revisions"}],"predecessor-version":[{"id":3400,"href":"https:\/\/bluegalaxy.info\/codewalk\/wp-json\/wp\/v2\/posts\/3382\/revisions\/3400"}],"wp:attachment":[{"href":"https:\/\/bluegalaxy.info\/codewalk\/wp-json\/wp\/v2\/media?parent=3382"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/bluegalaxy.info\/codewalk\/wp-json\/wp\/v2\/categories?post=3382"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/bluegalaxy.info\/codewalk\/wp-json\/wp\/v2\/tags?post=3382"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}