The most important subclasses of ASTNode besides TopLevel are Stmt and Expr, which, together with their subclasses, represent statements and expressions, respectively. This section briefly discusses some of the more important classes and predicates. For a full reference of all the subclasses of Stmt...
Concatenationmeans joining two or more strings together to create a new string. In order to concatenate, we use the concatenation operator, represented by a+symbol. The+symbol is also theaddition operatorwhen used with arithmetic operations. Let’s create a simple instance of concatenation, between...
JavaScript statements are commands to the browserJavaScript code is a sequence of statementsJavaScript statements are separated with semicolonMultiple statement on one line is allowedJavaScript statements can be grouped together in code blocksYou can break a code line after an operator or a comma. ...
When you compress multiple files using this option, in order for them to work together in the end we need to ensure somehow that one property gets mangled to the same name in all of them. For this, pass --name-cache filename.json and UglifyJS will maintain these mappings in a file wh...
String concatenation, especially when it involves either large amounts of text or an inordinate amount of pieces being stitched together via the add-by-value (+=) operator, can be a performance hog in browsers. You may never notice the problem if your strings are not very large, but the ...
Front-end installation skills 108 styles (4)-swing together " midnight, pushed the door to the courtyard, courtyard is ripe, 161187f61c01db has a red fruit quietly falling, I cut a moonlight wrapped my heart. July’s insect sound is the three hundred Tang poems that have blown up the ...
Instead of repeating the variable name on which you perform the operation after the equal sign, you can write the operation together with the equal sign and it will be applied to the variable. So, to go back to our example of the for loop, here’s how you can add the value of the ...
It reads well when multiple functions are chained together. // bad [1, 2, 3].map((number) => { const nextNumber = number + 1; `A string containing the ${nextNumber}.`; }); // good [1, 2, 3].map((number) => `A string containing the ${number + 1}.`); // good [1,...
Test-specific timeouts may also be applied, or the use of this.timeout(0) to disable timeouts all together: it('should take less than 500ms', function(done) { this.timeout(500); setTimeout(done, 300); }); # Hook-level Hook-level timeouts may also be applied: ...
Blend modes are used to blend layers together to create an interesting effect in a layer, or even to produce what seems like a new layer. Unlike the method of using transparency which can result in a washed-out top layer, blend modes can create a variety of very vibrant and intriguing re...