Dynamic method for speed optimisation
I am currently porting some JavaScript code and I don't know the best way to port over such code:
function verySlowCalculationOnlyDoThisOnce() {
console.log("logging slow calculation");
return "bye";
}
Test = function(name) {
this.name = name;
}
Object.assign(Test.prototype, {
hello: function() {
console.log("hello " + this.name)
},
bye: (function() {
var byeMessage = verySlowCalculationOnlyDoThisOnce();
return function() {
return byeMessage + ", " + this.name + "!";
}
}())
})
The bye method basically prepares a part of the return value only once, every test = new Test("you") will reuse the result of the slow function.
How to rewrite such code for TypeScript?
The actual real life example is this:
https://github.com/playcanvas/engine/blob/583883cc5111fabb64f2f57177f715cd6fa777fc/src/math/mat4.js#L418-L452
The three Vec3 are allocated once to prevent garbage collection.
typescript
asked Nov 23 '18 at 20:23
lama12345lama12345
2,22112022
add a comment |
I am currently porting some JavaScript code and I don't know the best way to port over such code:
function verySlowCalculationOnlyDoThisOnce() {
console.log("logging slow calculation");
return "bye";
}
Test = function(name) {
this.name = name;
}
Object.assign(Test.prototype, {
hello: function() {
console.log("hello " + this.name)
},
bye: (function() {
var byeMessage = verySlowCalculationOnlyDoThisOnce();
return function() {
return byeMessage + ", " + this.name + "!";
}
}())
})
The bye method basically prepares a part of the return value only once, every test = new Test("you") will reuse the result of the slow function.
How to rewrite such code for TypeScript?
The actual real life example is this:
https://github.com/playcanvas/engine/blob/583883cc5111fabb64f2f57177f715cd6fa777fc/src/math/mat4.js#L418-L452
The three Vec3 are allocated once to prevent garbage collection.
typescript
asked Nov 23 '18 at 20:23
lama12345lama12345
2,22112022
add a comment |
I am currently porting some JavaScript code and I don't know the best way to port over such code:
function verySlowCalculationOnlyDoThisOnce() {
console.log("logging slow calculation");
return "bye";
}
Test = function(name) {
this.name = name;
}
Object.assign(Test.prototype, {
hello: function() {
console.log("hello " + this.name)
},
bye: (function() {
var byeMessage = verySlowCalculationOnlyDoThisOnce();
return function() {
return byeMessage + ", " + this.name + "!";
}
}())
})
The bye method basically prepares a part of the return value only once, every test = new Test("you") will reuse the result of the slow function.
How to rewrite such code for TypeScript?
The actual real life example is this:
https://github.com/playcanvas/engine/blob/583883cc5111fabb64f2f57177f715cd6fa777fc/src/math/mat4.js#L418-L452
The three Vec3 are allocated once to prevent garbage collection.
typescript
asked Nov 23 '18 at 20:23
lama12345lama12345
2,22112022
I am currently porting some JavaScript code and I don't know the best way to port over such code:
function verySlowCalculationOnlyDoThisOnce() {
console.log("logging slow calculation");
return "bye";
}
Test = function(name) {
this.name = name;
}
Object.assign(Test.prototype, {
hello: function() {
console.log("hello " + this.name)
},
bye: (function() {
var byeMessage = verySlowCalculationOnlyDoThisOnce();
return function() {
return byeMessage + ", " + this.name + "!";
}
}())
})
The bye method basically prepares a part of the return value only once, every test = new Test("you") will reuse the result of the slow function.
How to rewrite such code for TypeScript?
The actual real life example is this:
https://github.com/playcanvas/engine/blob/583883cc5111fabb64f2f57177f715cd6fa777fc/src/math/mat4.js#L418-L452
The three Vec3 are allocated once to prevent garbage collection.
typescript
typescript
asked Nov 23 '18 at 20:23
lama12345lama12345
2,22112022
asked Nov 23 '18 at 20:23
lama12345lama12345
2,22112022
edited Nov 24 '18 at 12:35
lama12345
asked Nov 23 '18 at 20:23
lama12345lama12345
2,22112022
asked Nov 23 '18 at 20:23
lama12345lama12345
2,22112022
asked Nov 23 '18 at 20:23
lama12345lama12345
2,22112022
2,22112022
add a comment |
add a comment |
0
active
oldest
votes
Your Answer
StackExchange.ifUsing("editor", function () {
StackExchange.using("externalEditor", function () {
StackExchange.using("snippets", function () {
StackExchange.snippets.init();
});
});
}, "code-snippets");
StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});
function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});
}
});
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53452559%2fdynamic-method-for-speed-optimisation%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
0
active
oldest
votes
0
active
oldest
votes
active
oldest
votes
active
oldest
votes
Thanks for contributing an answer to Stack Overflow!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53452559%2fdynamic-method-for-speed-optimisation%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
